Check out this build:
PCPartPicker part list:
http://pcpartpicker.com/p/220QO
Price breakdown by merchant: http://pcpartpicker.com/p/220QO/by_merchant/
Benchmarks: http://pcpartpicker.com/p/220QO/benchmarks/
CPU: AMD FX-8320 3.5GHz 8-Core Processor ($158.98 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ OutletPC)
Motherboard: Asus M5A99FX PRO R2.0 ATX AM3+ Motherboard ($114.99 @ Newegg)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory ($59.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($59.94 @ OutletPC)
Video Card: Sapphire Radeon HD 7950 3GB Video Card ($195.66 @ Newegg)
Case: NZXT Tempest 410 ATX Mid Tower Case ($59.99 @ Newegg)
Power Supply: Corsair Builder 600W 80+ Bronze Certified ATX Power Supply ($37.99 @ Newegg)
Optical Drive: LG GH24NS95 DVD/CD Writer ($15.00 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($84.98 @ OutletPC)
Monitor: Asus VS239H-P 23.0" Monitor ($139.99 @ Newegg)
Keyboard: Logitech MK120 Wired Slim Keyboard w/Optical Mouse ($13.89 @ B&H)
Total: $971.38
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-11-13 21:23 EST-0500)