All from newegg -
PCPartPicker part list:
http://pcpartpicker.com/p/ykmw
Price breakdown by merchant: http://pcpartpicker.com/p/ykmw/by_merchant/
Benchmarks: http://pcpartpicker.com/p/ykmw/benchmarks/
CPU: Intel Core i5-3470 3.2GHz Quad-Core Processor ($199.99 @ Newegg)
Motherboard: ASRock H77M Micro ATX LGA1155 Motherboard ($69.99 @ Newegg)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($46.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($89.98 @ Newegg)
Video Card: XFX Radeon HD 7870 GHz Edition 2GB Video Card ($239.99 @ Newegg)
Case: Cooler Master HAF 912 ATX Mid Tower Case ($59.99 @ Newegg)
Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($70.98 @ Newegg)
Optical Drive: Samsung SH-224BB DVD/CD Writer ($15.99 @ Newegg)
Total: $781.90
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-01-20 19:34 EST-0500)