Drop to the FX8320, get a 2x4GB memory kit. You can pick up chassis for as low as $20, function over form when on a budget.
Try this out:
PCPartPicker part list:
http://pcpartpicker.com/p/swWJNG
Price breakdown by merchant: http://pcpartpicker.com/p/swWJNG/by_merchant/
CPU: AMD FX-8320 3.5GHz 8-Core Processor ($139.97 @ OutletPC)
Motherboard: Gigabyte GA-970A-DS3P ATX AM3+ Motherboard ($72.98 @ SuperBiiz)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($72.00 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($53.98 @ OutletPC)
Video Card: EVGA GeForce GTX 750 1GB ACX Video Card ($119.99 @ Newegg)
Case: BitFenix Neos Black ATX Mid Tower Case ($34.99 @ NCIX US)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($44.99 @ NCIX US)
Total: $538.90
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-10-13 10:46 EDT-0400