Post by izuul
You should be hit capped already for heroics since you have 3/3 Focused Aim. I don't know the exact figure you need to reach hit cap for heroics with 3/3 Focused Aim, but it should be somewhere in the neighborhood of 100. I wouldn't even worry about the raid hit cap yet since you have lots of upgrading to do before you get to that point.
Your AP isn't too bad, but your crit rating is awful low... that is definitely an area you could see a big improvement in.
If i were you, i would start doing the Knights of the Ebon Blade dailies (6 of them for 1500 rep a day) along with the Troll Patrol daily for Argent Crusade rep, and i would also swap out that Wyrmrest tabard for an Argent one.
There are several nice rewards you can get at revered rep with the Ebon Blade... very nice shoulders http://www.wowhead.com/?item=44257
, the best head enchant http://www.wowhead.com/?item=44149
, and arguably the best pre-raid melee weapon http://www.wowhead.com/?item=44249
if you can sacrifice the hit rating.
Argent Crusade rep gives you access to http://www.wowhead.com/?item=44245
which would be a nice upgrade until you get your xbow, and http://www.wowhead.com/?item=44295
which is about as good of a chest piece as you can find pre-raid.
Those would be good starting points.
As far as gems and chants go, the +14 agility gems are cheap and good for the red slots, the 7ag/11stam gems are pretty good for blue, and you can use either hit or crit gems in the yellow slots depending on what you need. I usually avoid the straight +AP gems. Any +agility chant you can get for a reasonable price helps, and the AP/Crit leg armors are very nice once you get a good set of legs to use them on.