Except for the PSU, that build is actually shockingly good for a pre build at that price.
But a bad PSU is a deal breaker for me and should be for everyone.
PCPartPicker part list:
http://pcpartpicker.com/p/3F487
Price breakdown by merchant: http://pcpartpicker.com/p/3F487/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3F487/benchmarks/
CPU: Intel Core i3-4130 3.4GHz Dual-Core Processor ($119.98 @ SuperBiiz)
Motherboard: Asus H81M-PLUS Micro ATX LGA1150 Motherboard ($69.99 @ Micro Center)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($68.99 @ Newegg)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($83.98 @ Amazon)
Video Card: Gigabyte Radeon R9 270X 2GB WINDFORCE Video Card ($199.99 @ Newegg)
Case: Zalman Z9 ATX Mid Tower Case ($44.99 @ Micro Center)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($59.99 @ NCIX US)
Optical Drive: Asus DRW-24F1ST DVD/CD Writer ($14.99 @ Newegg)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($89.98 @ OutletPC)
Total: $752.88
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-06 14:42 EDT-0400)
Best I could come up with that has quality components.