PCPartPicker part list:
http://pcpartpicker.com/p/2GP7i
Price breakdown by merchant: http://pcpartpicker.com/p/2GP7i/by_merchant/
Benchmarks: http://pcpartpicker.com/p/2GP7i/benchmarks/
CPU: AMD A10-7850K 3.7GHz Quad-Core Processor ($184.17 @ Amazon)
Motherboard: MSI A88XM-E35 Micro ATX FM2+ Motherboard ($67.99 @ Newegg)
Memory: G.Skill Sniper Series 8GB (2 x 4GB) DDR3-1866 Memory ($76.50 @ Newegg)
Storage: Western Digital Caviar Blue 250GB 3.5" 7200RPM Internal Hard Drive ($33.94 @ Amazon)
Case: Xigmatek Aeos MicroATX Mid Tower Case ($29.99 @ Newegg)
Power Supply: SeaSonic 300W 80+ Bronze Certified ATX Power Supply ($39.99 @ Mwave)
Optical Drive: LG GH24NSB0 DVD/CD Writer ($15.99 @ TigerDirect)
Monitor: AOC E2260SWDN 60Hz 21.5" Monitor ($99.99 @ Newegg)
Total: $548.56
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-01-24 13:20 EST-0500)