Could any of you computer whizzes improve this build?

Can you give us a little/lot more information on what you plan on doing with this computer?

Gaming? Video Encoding? Recording? Web browsing/Email?

edit: I'm assuming gaming based on the components but just wanted to confirm

^ I agree. We need info to finalize it to your needs. As for a mobo, if you can spare the money an Asus P8Z77-V will do. Otherwise for a little less the ASRock Extreme4 is the best. For the price of that cooler, the Cooler Master V6 or V8 is a much better option for performance. I don't know if the difference in cooling performance between the V6 and V8 but looks.

Sorry i forgot about that, you guessed correctly, i want to play games like skyrim and bf3 maxed at 1920x1080 (no vsync) will this be achievable?

Well then go with my suggestions. If you can spare the money though, a Sapphire 7970 Vapor-X is the single best GPU you can get besides the $1k GTX 690 (2x 680s in one case). Should play all those games with all the anti-aliasing turned to max around or above 60fps.

The GTX 670 can easily handle Skyrim maxed at around 100+ fps and BF3 single player at round 60+ fps? multiplayer around 40-60.