Arena viable teams - Now and until Cataclysm

[heyaz]

Trying to get an idea of what's really viable in arena as I use my last bit of RAF and energy to play with other teams. I know there are plenty of viable setups for just general pvp (5x druid, mage, etc.) but in general I'm interested in teams that can at least hit 1800 in arena, and even more so - ones that can do it without another player.

Here's my list so far:

Definite:

-4 elemental Shaman + 1 dedicated healer
Has been viable since BC, although apparently a lot more difficult in wrath due to a lot of aoe cc and no true instant nuke.

Potential:

-4x ret paladin + something (non dedicated). Can't say definite yet because only one person is doing it. But I can see it working
Massive burst potential, can actually kill destro warlocks, great synergy with auras and blessings, best aoe is also a group heal, instant heals, bubbles, ability to do damage through shields, etc.

-4x. warlock + dedicated healer
Heavy magic mitigation could really trump wizard cleave teams. Decent melee mitigation as well. Massive amounts of CC - four target fears, aoe fears, 4 target seduce, 4 target death coil. Teleport.

Possible?

4x enhancement shaman + dedicated healer
Absolute anti-caster melee class, including warlocks. High burst, 30 second god mode (sprint, 30% reduced damage, 8 pets), 4 stuns (via wolves). Carry over some of the elemental shaman benefits as well (totem farm, 4x hex, 4x wind shear), + the ablity to break snare, and snare targets with frost shock. Instant casts.


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I'd potentially like to get another team before Cataclysm to try out maybe at the end of this season and next, especially one that doesn't need a dedicated healer. Plus I'd hate to have shaman my only 80 team when the expansion comes out in the case that for whatever reason something breaks shaman multiboxing viability so bad I no longer want to play them in pvp.

Thought and ideas?