xNocturnalSunx:
A few Blue Grade gems, a lil too much expertise(though this isn't necessarily bad), don't need the hit gems since you're over 315 without them, don't need to gem for the socket bonus in chest.
Or if you're going to, put the nightmare tear there and a red gem in the shoulders.
If you're gonna go ArPen either go full ArPen and make sure you're at the softcap with your trinket, or don't gem ArPen and wait til you can hard cap it.
4/5 Improved Poisons 1/3 Vile Poisons>5/5 Improved.
Probably have a smoother rotation with Glyph of SnD instead of TotT, though I'm not sure how it will affect DPS.
LockecoleMA:
<.< I don't know jack **** about PvP so pass on you.
I will say 2/5 Relentless Strikes>2/2 Opportunity for your PvE spec.
AtrophyGFour:
Need more Expertise. Better off switching all the AGI/STA gems for pure AGI or AP. Could stand to have less hit, but that's no really an issue.
Spec is perfect, though I lean to TotT over FoK for Muti glpyhs, but than again, my off spec is Combat PvE.
General Thoughs for all:
If you don't have Dual Spec, it may be worth getting it, depending on your income. An off spec of Combat PvE is great for heroics and select raid bosses. An off spec of PvP is great for getting honor for gems and the like.
In regards to gemming...
I am of the school that you should have 1 Nightmare Tear, and everything else should be red or orange gems, in my case AP or AP/Haste. Technically(with exceptions) this provides the highest DPS. If you're wondering whether to gem for a socket bonus or not take a look at it.
For example, Leggings of the Broken Beast. 1 Red Socket, 1 Blue Socket, +6 AGI Socket Bonus. Two +20AGI gems=+40 AGI on the pants. 1 +20AGI gem and 1 +10AGI/+15STA gem=+36 AGI and +15 STA. So...less DPS there.
However, I will acknowledge that STA may be useful at times. The higher your gear level the more STA on gear. At low gear levels if you are lacking Health and getting killed by AoE a lot than you have two choices.
1. Find out why you're dieing and stop dieing to it(also known as STOP SUCKING).
2. If you can't stop dieing, maybe going for some Blue Socket Bonuses for STA may be worth it. Afterall you can't DPS if you're dead yea?
There are plenty of reasons why you may be dieing, bad tanks, bad healers, bad other players. This can't always be fixed. However, if you gem for STA because you can't stop standing in the lovely warm flickering fire...STOP SUCKING.