This would be better for gaming.
PCPartPicker part list:
http://pcpartpicker.com/p/x9d8jX
Price breakdown by merchant: http://pcpartpicker.com/p/x9d8jX/by_merchant/
Benchmarks: http://pcpartpicker.com/p/x9d8jX/benchmarks/
CPU: Intel Core i3-4130 3.4GHz Dual-Core Processor ($114.50 @ Amazon)
Motherboard: MSI B85M-P33 Micro ATX LGA1150 Motherboard ($58.98 @ SuperBiiz)
Memory: Team Vulcan 8GB (2 x 4GB) DDR3-1600 Memory ($64.99 @ Newegg)
Storage: Hitachi Ultrastar 1TB 3.5" 7200RPM Internal Hard Drive ($52.00 @ Amazon)
Video Card: XFX Radeon R9 280 3GB Double Dissipation Video Card ($199.99 @ Newegg)
Case: Corsair 200R ATX Mid Tower Case ($39.99 @ Newegg)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($34.99 @ NCIX US)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.99 @ Newegg)
Wireless Network Adapter: Asus USB-N13 802.11b/g/n USB 2.0 Wi-Fi Adapter ($19.99 @ Micro Center)
Total: $602.42
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-06-05 00:38 EDT-0400)
I picked a psu I feel more confident in. The price difference is only +$5.