The determination of NEED vs DESIRE for those who've never raided in Wrath of the Lich King is quite ambiguous. Perhaps you may want to reconsider the organization of your original listing of group vs. raid effects.

For my purposes (and I realize that this is just my opinion vs. your opinion):
Organizing buffs/debuffs by effect vs. intended class roles is something less likely to be influenced by incorrect interpretation.

To cite an example:
You list SpellSurge as a NEED. Personally my guild has gotten along fine with without it in sunwell, so it couldn't possibly be a NEED, just a desire for my guild. One might become lost in making one's groups, thinking that SpellSurge is absolutely required by one member of each healing group. Then we have a fight over whether SpellSurge is "NEED" or not, instead of whether it is a party only buff that restores mana.

For me, determing what character to invite to a group is easier when two lists exist:
a list of "raid vs. party/indiviual buffs"
a list of Class/spec that provide the buffs:

EFFECTS PARTY or INDIVIDUALS ONLY:
Damage increasing:
Ferocious Inspriation
etc.

Restoring:
Vampiric Touch
Drums of XYZ restoration
etc.

Utility
Aspect of the Pack
Mass Dispel (max of 10 targets)
Spirit Link (max of 3 targets)

AFFECTS RAID:
Damage increasing:
Expose Weakness
etc.
blah blah blah


CLASS - RESTRICTION - BUFF:
Hunter - BM - Ferocious Inspriation
Hunter - Srv - Expose Weakness
Hunter - Any - Aspect of the Pack

Priest - Shadow - Vampiric Touch
Priest - Any - Mass Dispel

Shaman - Rest - Spirit Link

Any - LWing - Drums of XYZ restoration


I realize that my post in terms of adding value via correcting a mistake is very limited. I hope that in terms of adding clarification to the original post, it could be somewhat useful. In terms of the spirit of EJ forums, the original post was in danger of being removed since it was mere conjecture on organizing a raid for raid bosses which are currently unknown. However, if you convert the post to a style of organizing raid/party/individual buffs it becomes a useful tool for any raid/5man group in determing best setup for their specific needs.

I liked your links and listing the class required for each buff.
However, you had an original question, "What would some ideal group combinations be for WoTLK?", but it's too early to answer that question since we don't fully know information like, combat swords rogue gets 24.8% more increase from ferocious inspiration than a retribution paladin.
But your list can help us understand things along the lines of ....

Hunters can provide 7 raid/party buffs (just a number not necessarily accurate).
Srv hunters provide 1 party buff, 2 raid buffs.
BM hunters provide 2 party buffs, 1 raid buffs.
MM hunter provides 1 raid buff.

Now i can be missing it, but i think all spellcasters would basicly love a 10% spellhaste buff.
Another reason to bring a non melee shaman (he will be dropping WF totem).

I say shuffle it under the caster desired buffs.

Still, i dont think there will be a 'golden setup' in WOTLK.

To many classes specs that have synergies or other things going nicely togehter.
Just take what you have and it will be ok.

Has anyone tested how Curse of the Elements interacts with Ebon Plaguebringer or Earth and Moon? I wondering if an un-maledicted CoE would still provide the spell resistance debuff if one of the other increased spell damage taken debuffs had already been applied.

I believe EW now only works for the SV Hunter's personal attacks as well, vice being a raid wide buff... Caligula commented on it on page 2, I believe the buff has changed. Can someone, hunter, verifiy?

Rogues now have a Blood Frenzy equivalent in deep combat tree (at least watching wowhead talent trees).
Blood Poisoning increase physical damage done to poisoned targets by 2%

Mutilate rogues also have Master Poisoner, which increases crit raid-wide by 3% on all poisoned targets.