PCPartPicker part list:
http://pcpartpicker.com/p/18fsd
Price breakdown by merchant: http://pcpartpicker.com/p/18fsd/by_merchant/
Benchmarks: http://pcpartpicker.com/p/18fsd/benchmarks/
CPU: AMD FX-6300 3.5GHz 6-Core Processor ($119.99 @ Amazon)
Motherboard: Asus M5A97 LE R2.0 ATX AM3+ Motherboard ($69.97 @ Outlet PC)
Memory: Crucial Ballistix 4GB (2 x 2GB) DDR3-1866 Memory ($31.82 @ NCIX US)
Storage: Toshiba 500GB 3.5" 7200RPM Internal Hard Drive ($49.99 @ Newegg)
Video Card: PowerColor Radeon HD 7870 XT 2GB Video Card ($209.99 @ Newegg)
Case: Cooler Master Elite 335 Upgraded ATX Mid Tower Case ($36.37 @ NCIX US)
Power Supply: Corsair Builder 500W 80 PLUS Bronze Certified ATX12V Power Supply ($29.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($18.98 @ Outlet PC)
Total: $567.10
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-06-19 21:27 EDT-0400)
EDIT: I am actually pretty proud of that build...$567 for a FX6300, 4GB DDR3-1866 RAM, 500GB 7200RPM HDD,
HD 7870XT, and Asus M5A97 MB...
That's a pretty solid build.