Still deciding on my setup atm... can't decide on the pali/warrior thing, tho I'm thinking as I've played warrior tanks it might be easier to setup, also I love the idea of a command/key push that does the following:

Warrior: Charge
DPS 1: step right
DPS 2: step left
Healer: Step back
Hybrid/DPS3: Step forward

That'd look pretty awesome

Wondering if this setup might work well:

Warrior: Tank
DPS: 2xShamis or mages or locks (not one of each, for simplicity)
Healer: Holy Paladin
DPS 3: Shadow Priest for Mana and HP regen etc

I already have a 70 warlock, and a 70 priest, so I'm tempted to level 5 mobs and then swap in the lock and priest as needs be, but, I'd like to learn to play them as 5 from day 1. Can't decide :/