Hint: when both of your questions are found almost verbatim in a thread containing both "FAQ" and "Read this before posting" in the title, you're doing something wrong.
My i ask a few things about the talent builds... Btw i used to play a rogue in 3.1, now i dont play him anymore but im still interested. Ok first of all, why 1 in Vile Poisons and 4 in Imp. Poisons for the combat build, why not go 5 in imp. poisons?
And why put 2 points into relentless strikes and not in opportunity, a 20% damage increase on mut would be more helpful than an average chance of 32% - 40% to gain 25 energy, not to mention more sustained and reliable dps ?