DPS (DAMAGE PER SECOND) AND PVP (PLAYER VERSUS PLAYER) TALENT SETUP FOR ROGUES
Well first you need to get your rogue to lvl 70, untill then just build up talents on combat. The best horde rogue is Troll and for alliance is Night elf. When you have your lvl 70 rogue go unlearn your talents at rogue trainer and set them like this:
You will need 2 swords and armor that increases your agility, dodge rating, critical strike chance and attack power.
And a tip for PVPing without being attacked:
Be stealthed and go behind your target. Use premeditation and then cheap shot. Your target has now 5 combo points on them. Use eviscerate and you should deal about 1200 damage. Then use hemorrhage and sinister strike (remember that your target is probably still stuned from cheap shot). Now you have 2 combo points on your target and your target should have about 1000 hitpoins less. Now use kidney shot. Use again hemorrhage and sinister strike while your target is stuned. So your target has 1000 hitpoints less again and 2 combo points. Use vanish to get stealthy and go behind your target. Use cheap shot so your target has now 5 combo points on them. Use eviscerate to deal another 1200 damage. Use hemorrhage and sinister strike again and now again eviscerate and you deal another 1500 damage...that all comes together to 5900 damage plus all the damage you do with your weapon while doing this. And the damage i said you will do was the minimum damage and i didn't include critical strikes. So if we put all together you can do about 8000 or 9000 damage minimum to your target if you use my tactic. If the target is still not dead use another kidney shot and finish him off.