If you could stretch for a bit more, maybe this. Should literally run your system 2 times over(maybe even 3 if you are not max load
$60 down from $117 with a 5 year warranty. I have had no problems with NCIX in Canada, so i would guess there US site should be equally good.http://us.ncix.com/products/?sku=25984&vpn=CMPSU-550VX&manufacture=Corsair&promoid=1301
I think it is a clearance sale, but still a good unit.
Edit, if you want to shop just newegg, let me know, but that is a good deal and by my own 5770(same as a 6770) results is way more then enough to run the card