PCPartPicker part list:
http://pcpartpicker.com/p/PTnzkL
Price breakdown by merchant: http://pcpartpicker.com/p/PTnzkL/by_merchant/
Benchmarks: http://pcpartpicker.com/p/PTnzkL/benchmarks/
CPU: Intel Core i3-4130 3.4GHz Dual-Core Processor ($118.28 @ OutletPC)
Motherboard: ASRock B85M Pro4 Micro ATX LGA1150 Motherboard ($69.99 @ Amazon)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($69.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($54.43 @ OutletPC)
Video Card: XFX Radeon R9 270 2GB Double Dissipation Video Card ($154.99 @ NCIX US)
Case: NZXT Source 210 (Black) ATX Mid Tower Case ($32.99 @ Micro Center)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($26.99 @ Newegg)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer ($14.99 @ Newegg)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($89.98 @ OutletPC)
Total: $632.63
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-28 10:09 EDT-0400)