PCPartPicker part list:
http://pcpartpicker.com/p/lc5s
Price breakdown by merchant: http://pcpartpicker.com/p/lc5s/by_merchant/
Benchmarks: http://pcpartpicker.com/p/lc5s/benchmarks/
CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($189.99 @ Microcenter)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($26.82 @ NCIX US)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($134.99 @ Amazon)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($38.99 @ Newegg)
Storage: Seagate Barracuda 500GB 3.5" 7200RPM Internal Hard Drive ($49.99 @ Newegg)
Storage: OCZ Vertex 4 128GB 2.5" Solid State Disk ($99.99 @ Newegg)
Video Card: Sapphire Radeon HD 7950 3GB Video Card ($284.99 @ Newegg)
Case: Antec One ATX Mid Tower Case ($39.99 @ NCIX US)
Power Supply: XFX 750W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($59.99 @ NCIX US)
Optical Drive: LG GH24NS90 DVD/CD Writer ($15.99 @ Newegg)
Monitor: Acer GD235HZbid 120Hz 23.6" Monitor ($199.99 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (64-bit) ($91.99 @ Amazon)
Total: $1233.71
(Prices include shipping, taxes, and discounts when available.)