heres a better build with better mobo, powersupply.ram, and videocard.
PCPartPicker part list: http://pcpartpicker.com/p/xNPV
Price breakdown by merchant: http://pcpartpicker.com/p/xNPV/by_merchant/
CPU: Intel Core i5-3470 3.2GHz Quad-Core Processor ($149.99 @ Microcenter)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ Amazon)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($127.99 @ Amazon)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($41.26 @ NCIX US)
Video Card: PowerColor Radeon HD 7950 3GB Video Card ($274.99 @ Newegg)
Case: Cooler Master HAF 912 ATX Mid Tower Case ($51.52 @ NCIX US)
Power Supply: XFX 650W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($59.99 @ NCIX US)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($24.98 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($89.98 @ Outlet PC)
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-01-15 19:24 EST-0500)
best bang for bucks card is a 7950 atm for that price, overclocked can rival a gtx 680.
and is a better deal than nvidia, i own a gtx 660ti its nice but for the price i should of bought a 7950 tbh.