Post by Novak
Hit and Exp are most important.
If you are Horde, you need 17% (Subtract 3% if you consistently are with a boomkin
). If you are Draenei, subtract an additional 1%.
Each percent is 26.23 rating. At the very most you need 445. At the very least you need 340.
You also need Expertise. 26 for any race. Though, you get 9
from talents, and potentially 5
from Orc racial (And to cover all bases, 5
from Dwarf racial in Cataclysm)
(I more than welcome criticism on the following:)
If you're going to pick any yellow gem, do crit. Haste boosts autoattack, and thus grants more wf, ft and mw procs. But gemming for AP as people recommend boosts every bit of damage you do.
Enhsim and Rawr are programs you can download. You load up your gear (I think Rawr allows imports from Armory), talents, etc. You can setup rotation, glyphs, totems..
It'll then take that information and calculate the DPS you should be doing. You can then alter pieces of equipment, etc. and test again, to see if it's a potential increase or decrease of DPS.