Need $600 - $700 Build w/Operating System included

[PuffyFawter]

Alright so I need a Gaming Computer Build within the $600 - $700 Dollar Range. I need it to be able to play Skyrim, Battlefield 3, Battlefield 4, And ARMA 3, on High settings at atleast a reasonable Fps. Thanks. Need something that I can easily upgrade over time.

 

[bodeen2012]

PCPartPicker part list: http://pcpartpicker.com/p/27enR
Price breakdown by merchant: http://pcpartpicker.com/p/27enR/by_merchant/
Benchmarks: http://pcpartpicker.com/p/27enR/benchmarks/

CPU: AMD FX-6300 3.5GHz 6-Core Processor ($119.99 @ Newegg)
Motherboard: ASRock 970 Extreme3 R2.0 ATX AM3+ Motherboard ($80.05 @ Amazon)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($64.03 @ Newegg)
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 ($140.78 @ Newegg)
Case: NZXT Source 210 Elite (White) ATX Mid Tower Case ($48.51 @ Amazon)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($29.43 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($16.00 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($88.59 @ NCIX US)
Total: $659.51
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-11-23 16:36 EST-0500)