Take a look at this http://pcpartpicker.com/p/2Z6RYJ
+1 on this build
Motherboard is overpriced, switch RAM to 2x4GB, upgrade to Gtx 770 2GB since its right around same price but better, Windows 8.1 is better, PSU is weird
Id reccomend switching that asus gtx 770 for a zotac gtx 770 amp edition (comes factory overclocked to the highest on the markrt and the cooler is good, will probably be much louder though.
same price with the rebate*