I am running a Dk/priest/3xWarlock team. Have cleared heroic Nexus, Keep, Gundrak, Culling and have partially cleared most of the others. (just a few sticky bosses giving me trouble). My warlocks run around 2000 dps with my one warlock with some raid gear hitting 2200 dps through the dungeon. Can see 2500 to 3000ish on bosses. I run a simple easy spec on them now. Affliction IS the dps king but the rotation can be a real pain without some serious macro work. And I would argue that clears are overall quicker out of affliction because trash dies too quick for your dots to really pay off. But Seed of Corruption spam would be much more powerful in affliction then in my spec. The next highest DPS spec (simulation craft) is FG/Emberstorm which is what I run now.

FG/Ember

This gives you the felguards which are relentless killing machines. As I stated before... when you are repositioning.. they are killing.. When you are lifetapping.. they are killing. When you are turned around from fear and need to be gathered up... they intercept and keep on killing. When you are in town.. they are dreaming about killing. The zero hassle pets do around 500 to 600dps each in my group. They can tank trash in a pinch if somehow you are failing to hold aggro for whatever reason. With the right buffs it scales up nicely. Your warrior has some things for them my dk doesn't. It also gives you easy macro's and rotation.

Button 1:

/cast [target=focustarget, nochanneling] Curse of Agony (or elements on one of them since you don't have a DK giving ebon plague)

Button 2:

/castsequence [target=focustarget, nochanneling] reset =10/target Corruption, Immolate (when they go up in this order you can pretty much cast them together as a pair when they drop.. they sync up nice)

Button 3:

/cast demonic empowerment (No GCD so this just keeps DE up on every cooldown since this is your spam button)
/cast [target=focustarget, nochanneling] Incinerate

For trash I just use the corruption, immolate and then spam incinerate till they are dead. For Bosses CoA gets thrown on as well. With very little able to kill the pets in heroics.. especially with your priest casting prayer of healing.. they are just killing machines. Felguards also cleave and when you have three of them it starts to add up for the trash packs. The rotation is simple and easy with not too much to keep track of on your dots. Incinerate being on it's own and not being in a cast sequence is a few hundred dps increase over a castsequence with it spammed in.

I am very happy with this set up.

Allesarelle