That build actually looks pretty good!
One thing though, for gaming purposes, you dont need more then 4gb of RAM. Almost nobody uses more then that. If you know why your getting 6gb, get 6gb. Otherwise, just stick with 4.
Heres 6gb RAM with same timings for a lot cheaper, and there a good brand.
I would really look into another case, the antec 900/902/1200 are getting pretty darn old, a nice cooler master or NZXT would be nice..
Consider an i5 750/760 because the price/performance on those are off the charts. An i7 would be a waste in this case. Multitasking yes but that would be a hell-of-a-lot-of multitasking to use the i7 hyper threading.. also, they run hot