Ordering soon, Review my First Build?

This is what I would suggest, I just checked on the 280x and that one place has it in stock at that price. I would pick it over the 7950. Also I noticed you left out the price of the case, I am guessing you already have it, if not then the white phantom 410 is on sale at tigerdirect.com for $69.99 right now

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: AMD FX-8320 3.5GHz 8-Core Processor ($129.99 @ Newegg)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ OutletPC)
Motherboard: ASRock 990FX Extreme3 ATX AM3+/AM3 Motherboard ($119.99 @ SuperBiiz)
Memory: A-Data XPG Gaming Series 8GB (2 x 4GB) DDR3-1600 Memory ($69.98 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($59.98 @ OutletPC)
Video Card: Asus Radeon R9 280X 3GB Video Card ($339.99 @ B&H)
Wireless Network Adapter: Asus PCE-N10 802.11b/g/n PCI-Express x1 Wi-Fi Adapter ($14.99 @ Newegg)
Case: NZXT Phantom 410 (Black/White) ATX Mid Tower Case
Power Supply: SeaSonic M12II 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($116.50 @ Newegg)
Optical Drive: LG GH24NS95 DVD/CD Writer ($21.98 @ OutletPC)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($88.98 @ OutletPC)
Total: $992.36
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-31 03:19 EST-0500)