Good gaming pc and fair price?

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: AMD FX-6300 3.5GHz 6-Core Processor ($119.60 @ DirectCanada)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ NCIX)
Motherboard: Gigabyte GA-970A-UD3 ATX AM3+ Motherboard ($99.99 @ Canada Computers)
Memory: Kingston Predator Series 8GB (2 x 4GB) DDR3-1600 Memory ($56.44 @ Amazon Canada)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($64.79 @ DirectCanada)
Video Card: XFX Radeon HD 7850 1GB Video Card ($124.99 @ Canada Computers)
Case: Antec GX700 ATX Mid Tower Case ($34.99 @ Canada Computers)
Power Supply: Antec High Current Gamer 620W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($54.99 @ Memory Express)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer ($15.79 @ DirectCanada)
Total: $601.57
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-09-23 19:49 EDT-0400)

that system is about a 20%-25% better performer then the one you're looking at... for $33 more. i suggest you look long and hard at it cause it's a better deal by far.