660 dollar build?

[IiIiI]

This is my first gaming pc build and I am wondering how well this build would do on 1080 resolution on medium and high settings on modern games. Also if you have another build please make sure not to include mail in rebates since I don't use them. PCPartPicker part list: http://pcpartpicker.com/p/1ft7N
Price breakdown by merchant: http://pcpartpicker.com/p/1ft7N/by_merchant/
Benchmarks: http://pcpartpicker.com/p/1ft7N/benchmarks/

CPU: AMD FX-6100 3.3GHz 6-Core Processor ($109.99 @ Microcenter)
Motherboard: Asus M5A97 LE R2.0 ATX AM3+ Motherboard ($68.99 @ Newegg)
Memory: Corsair 8GB (2 x 4GB) DDR3-1600 Memory ($69.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($69.99 @ Newegg)
Video Card: MSI Radeon HD 7870 GHz Edition 2GB Video Card ($209.99 @ Microcenter)
Case: Gigabyte GZ-F5HEB ATX Mid Tower Case ($24.99 @ Newegg)
Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($59.99 @ NCIX US)
Optical Drive: LG GH24NS95 DVD/CD Writer ($17.99 @ Newegg)
Total: $618.92
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-07-11 03:17 EDT-0400)

 

[Thanatos Telos]

Get a 6300 instead (6100 sucks in comparison) and get the NZXT Gamma or Source 210. If you can, push an extra 40$ and get the 760, which has much better performance than the 7870.