Blood Prince Ranged-Tanks

After running the Blood Princes and having our Keleseth tank we a specialized tank spec/gear, I came up with some specs of my own:

Warlock
http://www.wowhead.com/talent#IcxMbhbhoZ0GchohZVfhVbhuhcb:jdw
In the affliction tree, I wanted to get to Siphon Life and thus put points to improve corruption where I could. I put points into Suppression to decrease the frequency with which the warlock would need to life tap and to increase hit chance so that they can garner more threat. Soul Siphon and Fel Concentration make it so that the lock can cast Drain Life, to make the healers' lives easier. Grim reach allows the lock to hit Kinetic Bombs (disco balls) and the Dark Nuclei from a greater distance. Also, if he gets knocked back, he can get back into action faster. I chose to glyph Siphon Life because it will increase the self healing by a good portion.

In Demononlogy, I didn't put points into the improved healthstone (nor did I use the Glyph) because I feel that it is not as useful as some of the other available talents. Demonic Embrace is an obvious choice and Fel Synergy will help keep your pet up via Soul Link. The pet of choice for this spec would be the Voidwalker and Demonic Brutality helps him immensely. You'll be using him mostly to soak damage via Soul Link and Sacrifice. Fel Vitality gives the Voidwalker a lot more health and increases the mana and health of the warlock- more survivability and less Life Tap. Demoic Aegis helps with Demon Armor. Demon Armor increases armor as well as healing received, a 30% boost is fairly significant. Finally, Soul Link will reduce all incoming damage by 20% and with the glyph, by 25%. This essentially makes your Voidwalker an extra Dark Nucleus.

For Destruction I put points in Bane for faster cast times, meaning that if the warlock needs to hit something quickly- ie: Disco Ball, Nucleus or a runaway boss, he can. Molten Skin increases survivability and Cataclysm is a going to be a great expansion. It also means that the warlock Life Taps less and so he is less likely to get insta-gibbed by an incoming shadow lance. Aftermath helps a little with maintaining threat via Immolate as well as keeping the disco balls up. I put a few points into Ruin, because a big crit with Searing Pain will garner a lot of threat, and that threat will be useful. Intensity again allows the Warlock to cast through being hit by a lance and so can hit what he needs to hit sooner. Searing Pain is probably the best way for the warlock to grab and hold onto things as it has a decent increase in threat. Devestation will also help with Searing Pain and with the Warlocks DPS. Improved Immolate is a point-dump, but it does help with damage and disco balls. Nether Protection can also act as an emergency Dark Nucleus- after getting hit by a shadow lance, it is possible that the warlock will take significantly less damage from the next (of the same class). Keleseth's cast time is about 1.5 seconds, so in an 8 second period he can get off five or six Shadow Lances, more likely than not, one of those will trigger Nether Protection, so it would constantly be up- which is another great damage soak. Soul Leech helps with healing via crits and I chose pyroclasm over emberstorm because it also effect corruption.

Priest
http://www.wowhead.com/talent#bVcbuhh0oZfVtZGbcVRfzff:hbfVMc
I need to preface this by saying that my only priest got to level 21 before I stopped, so you priests probably know a huge amount more than I do. Like the Warlock spec, this is just a huge mish-mash of useful talents all thrown in together.

In the Discipline tree, I focused on improving Power Word: Shield, as that should be a useful buffer to have as it essentially adds to your current effective health. If there is a Disc priest in the raid, I don't think that it will be necessary to go that far into the tree, but it could be helpful. Imp Inner Fire is a point dump to get to Imp PW:S. The other points in that tree may not be entirely necessary if the caster does not have any mana problems or there is another Disc Priest in the group. The glyph for the shield just makes you last that little bit longer.

For Holy, I focused on getting some talents to help improve direct damage spells and healing. You can stick renew on yourself and any of your spells that have cast times- Holy Fire, Smite etc... won't be as slowed down, so you can hit the Nuclei more efficiently. Desperate Prayer should be very useful as a 'tanking' button to push when you get almost killed. I'm not sure how good the glpyh of renew is but it can be traded out for Glyph of SW:P.

For Shadow, I focus on more mana regen and getting those DoTs to work. Sticking SW:P onto the Nuclei should bring them to you. Spirit Tap increases mana regen and Darkness helps with threat. Shadow Focus drops mana costs andmakes you more likely to hit- which in turn means more mana. Imp MB lets you cast it more often, which we always like. Mind Flay will probably be the main workhorse of the spec, grabbing Nuclei and the bosses and potentially hitting Disco balls as well. For the rest of the shadow tree we continue to improve Mind Blast and Mind Flay while picking up Vampiric Embrace and Devouring plague for the healing abiltities. We stop before picking up Shadowform, because of the immense threat reduction that would make it very difficult to hold off other players.

As a final note on priests, it may be possible just to get a PvP Shadow spec to do the work and hit dispersion when he begins to cast his empowered lances to avoid that damage.

Mage
http://www.wowarmory.com/talent-calc.xml?cid=8&tal=03202520012003212300000000000000000000000000000000000000000533030310203103230132211100
This is Kyabetsu's build exported straight from his armory page. I definitely don't know mages as well as he does, so I'm going to throw together my own and compare the two

http://www.wowhead.com/talent#ocbfbubhdfZZVIccobksfzTbk:Rj
Here's what I came up with. 

The Important talents in Arcane are Prismatic Cloak for the damage reduction, Presence of Mind, in case you need to toss out a huge spell to grab aggro back, Improved Blink to dodge more spells and Arcane Shielding to increase the effectiveness of Mana Shield. Arcane Focus allows more hits and consequently more threat.

Fire doesn't really have any damage reduction talents, so its not necessary to go into that tree.

Frostbolt is the main nuke of this, so most of the points are in frost. Precision fills the same roll as Arcane Focus. Arctic Reach is our usual range increment, useful for reasons already mentioned. Frozen core reduces your damage taken further and Cold Snap can refresh the cooldowns on both Ice Block and Ice Barrier. Finish up by improving your frost spells some more, and poof. A spec.

Hunter
http://www.wowhead.com/talent#cVcGzxRZcZe00i0fMhxhA0so
Again, this is a class that I'm not very familiar with, so I had to look at all of the talents and figure out how to best alot them.

In Beast Mastery the Important talents are Endurance Training (for the HP), Imp Monkey (for the dodge), Aspect Mastery (5% damage Reduction), and Spirit Bond which increases heals to you(and has a steady HoT on you).

The Marksmanship talents are just for the hit- if you're capped without em, put em into Surv, where most of the points are. 

For Survival the Important talents are Hawk Eye, for the extra range to snag the Nuclei and K-bombs, Survival Instincts for the Damage Reduction, and Survivalist for the 10% Stam.

You could take all the points in Surv out of there and stick them into BM if you think that filling up that tree would be more effective than what I did. Again, since I don't know Hunters all that well, I don't know what would be best at holding aggro.

While doing this, the hunter pet can either be attacking the main target, or, using a simple macro, can be chasing after the falling K-Bombs:
/tar Kinetic Bomb
/petattack

Shaman
http://www.wowhead.com/talent#hec0qcdIthfzqo0xxbcV:s
Finally, another class that I don't know. I'm going to look to amph to point out any obvious deficiencies.

I put points into Enhancement to get Anticipation and Toughness, for the survivability.

The (imo) vital talents in elemental are Elemental Warding for the damage reduction, Eye of the storm for fewest interuptions, Elemental Reach and precision for the normal reasons. And after that I just tossed in points to fill out the tree.
It may be a good idea to specialize in making the shocks really good so that you can just snap one out on a Nucleus (or a K-bomb) if you absolutely need to hit it immediately.

Druid
I ruled out Druids because of class mechanics. The useful talents in the Feral Tree would not affect the druid when it was in a caster for (either normal or boomkin). However, it could (in theory) be done. I just don't know how.