Gaming Computers.

[bvcxzmn]

And get an Intel processor and motherboard. Also, of course you'll have to put it together yourself. It's not that hard, just look up some tutorials on youtube.

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This is what I recommend for your needs:
http://pcpartpicker.com/p/DWzD
Remember that this site checks for the lowest price possible, the actual cost will be higher (about $900 for this one and about $800 for the one you quoted at the top of the page).