Healing wise, it will be fairly easy to setup. On my healdin, i'm mostly spamming flash heals, so that will be easy. My only concern is lack of any aoe healing (assuming priest is shadow).

DPS management will be a challenge but not impossible. Your biggest challenge will be overcoming 3 different casting timers. Mages 2-3 seconds, Warlocks instant, and Priest channeling (Fireball, dots, mindflay). Luckly there are script commands that will check for "ischannelling" so it is feasible to bind all your attacks to one button. I'm not sure of the timing but you may be able to do a cast sequence like so:

mage - just straight fireball - 2.5 - 3 seconds

Warlock - cast squence CoA, Corruption, shadowbolt, shadowbolt, shadowbolt

Priest - cast sequence priest dot, VA, mind blast, mind flay, mindflay

Again not sure on the timing but with this I would try and get it so that you your warlocks dot timers are finished by the time the cast sequence starts again. Your priest could do just straight mindflay and rock the dps.



As for the Main, definetly the Warrior. No question.