I'd say around 10-11% hit should work fine. So you can un-reforge that crit you've forged into hit, and you might want to reforge that excess expertise into crit as well.
Apart from that, the main thing I have to say to you is get grinding those reps. And, enchant the gear you've got.
But yeah, epic neck from Ramkahen, epic belt from Hyjal, 346 gloves from Wildhammer, and also your head enchant, that's pretty important. There is still quite a lot of gear out there that is not reliant on drop rates, just on you grinding the reputations, and doing that you should see your dps go up.