Would this computer work? Please read.?

as far as i know it looks like it kicks my pc's a** however you shouldn't be able to run an ati card alongside an nvidia i would say go with 2 gtx 590's or two Radeon HD 6990 because the ati cards use crossfire and the nvidia cards use sli and unfortunately there not cross compatible otherwise it looks quite nice grab a x64 OS to make it complete