Better CPU, MOBO, PSU and Graphics Card, stock cooler is fine on these for a little overclocking headroom:
PCPartPicker part list:
http://pcpartpicker.com/p/HxBFD3
Price breakdown by merchant: http://pcpartpicker.com/p/HxBFD3/by_merchant/
CPU: AMD FX-6300 3.5GHz 6-Core Processor ($96.89 @ OutletPC)
Motherboard: Gigabyte GA-970A-DS3P ATX AM3+ Motherboard ($57.24 @ Newegg)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory ($37.99 @ Amazon)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($46.87 @ OutletPC)
Video Card: XFX Radeon R7 370 2GB Double Dissipation Video Card ($129.99 @ Newegg)
Case: Apex Vortex 3620 ATX Mid Tower Case ($36.99 @ SuperBiiz)
Power Supply: Antec High Current Gamer 520W 80+ Bronze Certified Semi-Modular ATX Power Supply ($54.99 @ Newegg)
Total: $460.96
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-09-19 19:25 EDT-0400