$800 Top Cost PC Build Need help

Hello, i have posted on the build a pc forum before but i am fairly new to forums and my situation has changed. I am new to PC gaming but not new to electronics. I work on radios and satellites for the United States Air force so, i am capable of putting the computer together myself. My issue is i don't know what needs to be used with what in order for the computer to run smoothly. I am looking to play most games on high quality if possible in this price range. I would also like dual screens. I have a friend to help with the build just need the parts. Any help is appreciated. And maybe a monitor suggestion to buy at a later date.

Couple Questions:

1. Would you like to have Overclocking capabilities?

2. Do you need peripherals (speakers, keyboard, mouse, monitors, Operating System)

3. Do you need wireless capability(WiFi)?

Assuming Tower Only:

http://pcpartpicker.com/p/1ZsCx

CPU: AMD FX-8350 4.0GHz 8-Core Processor.  Great value for the money, and my usual choice of CPU for sub-1k builds.

CPU Cooler: Cooler Master Hyper 212 Plus 76.8 CFM Sleeve Bearing CPU Cooler.  This will allow you to overclock a bit if you want to.  One of the best bang-for-your-buck coolers right now.

MOBO: Asus M5A99FX PRO R2.0 ATX AM3+ Motherboard.  A motherboard which is SLI capable for upgrades, and has good VRMs to handle the 8-core CPU.

RAM: Crucial Ballistix Sport XT 8GB (2 x 4GB) DDR3-1600 Memory.  Good enough for gaming and general use.

HDD: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive  Typical 1TB drive for storage.

GPU: PowerColor Radeon HD 7870 XT 2GB Video Card.  One for now, as the 7950s are a super high jump in price now, for some reason.

Case: Fractal Design Arc Midi R2 (Black) ATX Mid Tower Case.  Quiet, quality case.

PSU: Corsair Builder 750W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply.  PSU allows for SLI and OC headroom.

OD: Lite-On iHAS124-04 DVD/CD Writer.  If you need it.

This may be a good option close to Some Tech Noob's suggestion but I downgraded the CPU a bit and increased the GPU a bit. http://pcpartpicker.com/p/1ZxYs 

Also a pretty good build.  The R9 280X is basically a HD 7970 with a new sticker.  They even crossfire together.  Purchasing a 7970 will be cheaper.

[see below]

I put the R9 280x because it was cheaper than the 7970, also why did you post a 7870?

R9 280x: http://pcpartpicker.com/part/his-video-card-h280xqm3g2m - $305.91

7970: http://pcpartpicker.com/part/his-video-card-h797qm3g2m - $359.99

Both HIS IceQX2

I was told by alot of people to stay away from AMD is there a solution to use Intell? or is that out of my price range? something about cooling efficiancy?

Intel has its benefits, price is not one of them. Your better off getting an AMD CPU since they are cheaper and despite some of the fanboyism, the recommended CPUs will be perfectly fine for gaming. That after market cooler will keep the cpu plenty cool even if you put a decent overclock on it so don't worry about cooling.

Whoops, yeah, I accidentally linked the 7870.  Get the one that provoked linked ^

After all, most of the games out there aren't really super CPU-dependent.  I would go with Intel for performance and if you had a higher budget.