This if you prefer intel cpu. The gpu on this build is better than tiny voices, but the cpu is not as good for multi threaded apps. You won't get "heavy" gaming at $500, but it will pay most games on medium or high
PCPartPicker part list:
http://pcpartpicker.com/p/E24v
Price breakdown by merchant: http://pcpartpicker.com/p/E24v/by_merchant/
Benchmarks: http://pcpartpicker.com/p/E24v/benchmarks/
CPU: Intel Core i3-3220 3.3GHz Dual-Core Processor ($123.79 @ Amazon)
Motherboard: Biostar H77MU3 Micro ATX LGA1155 Motherboard ($59.99 @ Microcenter)
Memory: G.Skill Value 8GB (1 x 8GB) DDR3-1600 Memory ($29.98 @ Outlet PC)
Storage: Western Digital Scorpio Blue 500GB 2.5" 5400RPM Internal Hard Drive ($55.68 @ SuperBiiz)
Video Card: XFX Radeon HD 7850 1GB Video Card ($159.99 @ Newegg)
Case: Zalman Z5 ATX Mid Tower Case ($24.99 @ Newegg)
Power Supply: Corsair Builder 430W 80 PLUS Bronze Certified ATX12V Power Supply ($26.99 @ Newegg)
Optical Drive: Samsung SH-224BB DVD/CD Writer ($17.99 @ Newegg)
Total: $499.40
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-02-17 01:17 EST-0500)