PCPartPicker part list:
http://pcpartpicker.com/p/r7bd
Price breakdown by merchant: http://pcpartpicker.com/p/r7bd/by_merchant/
Benchmarks: http://pcpartpicker.com/p/r7bd/benchmarks/
CPU: Intel Core i5-3470 3.2GHz Quad-Core Processor ($184.99 @ Amazon)
Motherboard: ASRock H77 Pro4/MVP ATX LGA1155 Motherboard ($87.55 @ Newegg)
Memory: Patriot Intel Extreme Master, Limited Ed 8GB (2 x 4GB) DDR3-1600 Memory ($40.99 @ Newegg)
Storage: Seagate Barracuda 1.5TB 3.5" 7200RPM Internal Hard Drive ($81.98 @ Newegg)
Video Card: MSI Radeon HD 7870 2GB Video Card ($239.99 @ Newegg)
Case: NZXT Source 210 (Black) ATX Mid Tower Case ($47.98 @ Newegg)
Power Supply: Corsair Builder 500W 80 PLUS Certified ATX12V Power Supply ($39.99 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($17.89 @ Outlet PC)
Total: $731.36
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2012-12-05 20:14 EST-0500)
There it is, Video card is 220$ after discount. But it will max those games.