Quick Rogue Info:
http://wow.curse.com/downloads/wow-addons/details/qri.aspx
This is basically a unit frames mod especially for rogues. Has everything: Combo Points, Energy bars, buff, debuffs, you name it.
Mutilate:
http://wow.curse.com/downloads/wow-addons/details/mutilate.aspx
This is like Feral By Night except for mutilate rogues. Quite simply, it tells you what ability to use based upon the current game state.
Is it perfect? No, but it's VERY good. I did 5600 dps on a training dummy using it. I'll be messing around with it on some fights to come.