Try -
CPU: Intel Pentium G3258 3.2GHz Dual-Core Processor ($64.89 @ OutletPC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($26.98 @ OutletPC)
Motherboard: ASRock Z97 Anniversary ATX LGA1150 Motherboard ($82.98 @ Newegg)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1866 Memory ($57.89 @ OutletPC)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($46.89 @ OutletPC)
Video Card: Gigabyte Radeon R7 260X 2GB WINDFORCE Video Card ($132.98 @ Newegg)
Case: Corsair 200R ATX Mid Tower Case ($59.99 @ Micro Center)
Power Supply: Antec 450W ATX Power Supply ($24.99 @ NCIX US)
Total: $497.59
http://pcpartpicker.com/p/LCphLk