If I was going to build a budget gaming system:

i5-4570 $200
MSI Z87-G45 $145 (-10)
EVGA SuperClocked 760 w/ACX $250
Corsair HX650 $120 (-20)
Corsair Vengeance 8GB RAM $87
Corsair 200R $60 (-10)
----------------------------------------------
$862 (-40)
$822

The negatives are current gift card rebates at Newegg.