A new computer for gaming

[AlexSVoltage]

First I want to introduce myself: I am Alexander and I am 18 years, I think this will suffice. I wanted to ask what I could put in a computer for gaming with a budget of $ 800. I do not ask to run Battlefield 3 at ultra settings but to be able to keep it up to minimum settings. In addition, the computer must also hold onto Skype and Fraps (it is a program to record a game) while playing.
Thanks!

 

[Proximon]

This topic has been moved from the section Opinions and Experiences to section Systems by Proximon

 

[AMD Radeon]

http://www.tomshardware.com/forum/261222-31-build-advice
^ follow this format

and this is 1st try, someone will add more advice later

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($189.99 @ Microcenter)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ Amazon)
Motherboard: ASRock Z77 Pro4-M Micro ATX LGA1155 Motherboard ($98.99 @ Amazon)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($38.99 @ NCIX US)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($89.99 @ NCIX US)
Video Card: XFX Radeon HD 7850 1GB Video Card ($177.55 @ Newegg)
Case: Fractal Design Core 1000 MicroATX Mini Tower Case ($39.99 @ NCIX US)
Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($53.99 @ NCIX US)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($17.89 @ Outlet PC)
Total: $737.36
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2012-12-25 04:23 EST-0500)