What is the best gaming computer I can get for $900?

Monitor, keyboard, mouse too

Amd not Intel please

I would recomend this http://pcpartpicker.com/p/pkKy crossfiring the card. If you have a spare case lying around you could save a little bit more money. You also need to find another powersupply.

 

 

Close as I could get. Couldnt fit an ssd in... only thing it really needs.

http://pcpartpicker.com/p/r7UK

a 550 wat psu is alittle to small for crossfiring i'd throw in 40 bucks more for a 750 watt