First-time builder needs advice for budget gaming build

Hey guys,

I'm a completely new at this, but I've been spending time doing some research and I'm pretty excited about building this.

Basically, I'm looking to build a desktop that will allow me to comfortably play most games (not necessarily on highest settings), edit photos, video and audio, and just be a strong multitasking workhorse. My student budget is limiting, but I'm willing to be a little flexible if you guys think it's necessary.

I already own a monitor, speakers, keyboard and mouse. I have no intentions of overclocking and this will be my first build, so it would be nice to not have anything too complicated.

This is what I have come up with so far:

PCPartPicker part list: http://pcpartpicker.com/p/qvZp
Price breakdown by merchant: http://pcpartpicker.com/p/qvZp/by_merchant/
Benchmarks: http://pcpartpicker.com/p/qvZp/benchmarks/

CPU: Intel Core i5-3470 3.2GHz Quad-Core Processor ($149.99 @ Microcenter)
Motherboard: ASRock B75M Micro ATX LGA1155 Motherboard ($70.02 @ Amazon)
Memory: G.Skill Ripjaws X Series 8GB (1 x 8GB) DDR3-1600 Memory ($32.31 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($75.41 @ NCIX US)
Video Card: MSI Radeon HD 7770 GHz Edition 1GB Video Card ($111.07 @ Newegg)
Case: Rosewill CHALLENGER ATX Mid Tower Case ($53.86 @ Newegg)
Power Supply: Corsair Builder 430W 80 PLUS Bronze Certified ATX12V Power Supply ($39.55 @ Newegg)
Optical Drive: Lite-On IHAS324-98 DVD/CD Writer ($16.53 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($96.99 @ B&H)
Total: $645.73
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2012-12-03 00:18 EST-0500)


What do you guys think? Thanks in advance!