It looks really great.
Only thing I would really change is the GPU and the PSU.
The 7950 outperforms the 660 Ti on all games save nVidia-optimized ones, and is a better overclocker.
The Hive is okay, but really you're paying for a 550w PSU in reality since there's only 46amps on the Hive's +12v rail.
It's enough for your setup, but yeah. I don't personally like paying for something that's not actually what I'm paying for.
True, but isn't the 7950 at least $50.00 more?