Here's a build if you want to stick with AMD. I upgraded pretty much everything.
PCPartPicker part list:
http://pcpartpicker.com/p/RZWst6
Price breakdown by merchant: http://pcpartpicker.com/p/RZWst6/by_merchant/
CPU: AMD FX-8350 4.0GHz 8-Core Processor ($174.98 @ OutletPC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ OutletPC)
Motherboard: Asus M5A97 R2.0 ATX AM3+ Motherboard ($89.79 @ Newegg)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1066 Memory ($79.99 @ Newegg)
Storage: Kingston SSDNow V300 Series 120GB 2.5" Solid State Drive ($54.99 @ Adorama)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($54.98 @ OutletPC)
Video Card: Sapphire Radeon R9 290 4GB Tri-X Video Card ($379.99 @ Newegg)
Case: Apevia X-DREAMER4-BL ATX Mid Tower Case ($59.99 @ Mwave)
Power Supply: XFX 750W 80+ Bronze Certified ATX Power Supply ($80.98 @ SuperBiiz)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($84.98 @ OutletPC)
Monitor: Hannspree HT231HPBU 23.0" Monitor ($188.92 @ TigerDirect)
Total: $1279.57
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-07-25 18:02 EDT-0400