Now you will be maxing alot of games with this build but remember, If you have a Microcenter Near of you, you can get better deals that neweeg. I saw The same cpu and videocard combo at 165 usd, and a 6870 at 120.
It strongly depends on your games though. But at that resolution, almost any build would be fine. My $400 build here would be more than enough. http://www.squidoo.com/electronicandmore
But Chulex's build would be good enough.