First Gaming Computer

I would drop your RAM to 8GB (2x4) and get a more recognised PSU brand (Corsair etc). Go for circa 600W unless you plan on going multi-GPU in the future. Any excess cash you have should be put into the GPU...try to get to a 7950, it'll give you a good boost over the 7850. We've no info on your gaming resolution, but assuming 1080p, a 7950 would be a better bet.

Ok, I thanks for the help. I've updated it, how does this look? http://pcpartpicker.com/p/Gd1u . Also, would a setup like this be able to handle games like battlefield 3 on ultra?

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: AMD FX-8320 3.5GHz 8-Core Processor ($169.99 @ Amazon)
Motherboard: MSI 970A-G46 ATX AM3+ Motherboard ($79.98 @ Outlet PC)
Memory: GeIL EVO Veloce Series 8GB (2 x 4GB) DDR3-1600 Memory ($44.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($69.98 @ Outlet PC)
Video Card: PowerColor Radeon HD 7950 3GB Video Card ($279.99 @ Newegg)
Case: Corsair 300R ATX Mid Tower Case ($59.99 @ Newegg)
Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($69.98 @ Newegg)
Optical Drive: Samsung SH-224BB DVD/CD Writer ($15.99 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (32-bit) ($89.98 @ Outlet PC)
Total: $880.87
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-02-26 18:47 EST-0500)

Do this. Much better gamer and much higher quality parts.

I like this setup a lot actually, my only question is could I keep all this and then go with the apevia case? http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Yes, its not as good of a case but if you like it then sure.

What is your budget?

I really suggest that you save $50 and go windows 8 pro. Windows 8 pro is basically an updated windows 7 with a start menu that displays a lot of stuff.

Also internet explorer metro app is awesome, and Microsoft will continue to update windows 8 but not windows 7.

My budget is around $1000. And personally I just don't prefer Windows 8.