Get a good 850w instead. 850w will handle any dual GPU config in existence and probably will continue to. Only get 1kw+ if you plan on going Tri SLI.
And no, the HX1000 isn't worth it.
maybe this one?
CORSAIR Professional Series AX850 850W ATX12V v2.31 / EPS12V v2.92 80 PLUS GOLD Certified Modular Active PFC Power Supply
PS: The reason why I made a topic about it is because I really have no idea about power supplies, pretty lost on this matter.
Edited by j9xcm3 - 1/28/11 at 11:56pm