If you have no idea what you're doing, perhaps you should read the discussions on the topic and find out. Or use on of the spreadsheets. In particular, it's pretty clear you haven't read the rogue FAQ, so perhaps you should do that.
Been playing Mutilate since wotlk came out.
Now I decided that I would like to try combat..
But my hit seems very low(248)
(and exertise to high)
So I wonder if its worth to switch Mirror of Truth with Pyrite Infuser (95hit and 1200+ap proc 10sec)
How much hit do a combat rogue want?
I got NO CLUE about combat... Any suggestions would be great, I want some more hit.