which one is better and list any other good build for 800 maybe even 900
http://pcpartpicker.com/user/lakrisl/saved/2Hx4
http://pcpartpicker.com/user/lakrisl/saved/2Hx0
http://pcpartpicker.com/user/lakrisl/saved/2Hx4
http://pcpartpicker.com/user/lakrisl/saved/2Hx0