PCPartPicker part list:
http://pcpartpicker.com/p/3g1CQ
Price breakdown by merchant: http://pcpartpicker.com/p/3g1CQ/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3g1CQ/benchmarks/
CPU: AMD FX-8320 3.5GHz 8-Core Processor ($139.99 @ Amazon)
Motherboard: Gigabyte GA-970A-D3P ATX AM3+/AM3 Motherboard ($79.99 @ NCIX US)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($64.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($59.23 @ OutletPC)
Video Card: Asus GeForce GTX 660 2GB Video Card ($179.98 @ SuperBiiz)
Case: NZXT Source 210 (Black) ATX Mid Tower Case ($37.99 @ Micro Center)
Power Supply: Corsair Builder 430W 80+ Bronze Certified ATX Power Supply ($19.99 @ Micro Center)
Total: $582.16
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-25 01:57 EDT-0400)