As for warlocks, consider that dots seem to be a mixed blessing/curse. Resilience reduces dot damage, dots can't crit, dots don't benefit from haste, and dots seem to be of the nature that you can heal through them. I love that you don't have to be facing your target to put them on which seems to be a big mb benefit and you can put a heap of hurt on fast (that hurt doesn't take effect fast, it is just put in motion fast). Locks can be UD and that gives you some fear protection. Having a priest somewhere in the mix gives some fear protection. From reading around it seems affliction doesn't scale well and people are not sure if the +10% damage bonus they just gave it + the haunt bonus will be able to put it on track or not. As a thought... having multiple locks means you can put multiple haunts on different targets all maxed out with dots.

I am torn myself between druid or hunter or lock. I am leaning more towards hunter or lock. Seems like hunters are getting good damage buffs and pet buffs and getting to distance buffs and they already do some good damage.

I am a bit confused how moonkin will be able to do the pewpew. Starfire is only hitting for 670 to 790 (3 sec cast/2 per six sec) @80 before spelldamage. Lightning bolt 715 to 815 (2 sec cast/3 per six sec). It must be that starfire is getting +120 percent from spelldamage whereas lightning bolt is getting +79.4% (it will be 104.4% in wotlk). I guess it takes more than can be gotten into here and take us off track. I would be a bigger fan of druids if i saw how they would be able to have the pewpew.