I have four rogues. Three in one team and one in a different team for the crit buff. I like them. Also, sap is a very nice cc. I use mutilate spec. I dont even bother stealthing though i probably will after 4.1 gets applied. I dont spam IWT so they dont run aroundlike maniacs. I would for pvp. In pvp i woukd also use a 2step with backstab as step 2. In pve though im too worried about them running off in random directions.

I thinK theyre like hunters - easy mindless dps. It sometimes sucks having four group members in range of boss aoe. They have cloak of skill for emergencies though.

Im not at my computer right now and my rogues are only 70. But with assassination spec you can pretty much guarantee when you have combo points. I use a 1 step castsequence macro and it hasnt locked up on me. I probably waste some combo points but i dont try to use abilities in the sequence without knowing ill have some pts.

Any class at end game is going to do better dps single boxed than it will multiboxed.