1000W is way too overkill , even 750W is Overkill for a single card !
If you think you're going to crossfire anytime soon then get the EVGA 850W B2 which is an excellent quality PSU for not much and by then you'd be able to buy some case fans.
Recommended Manufacturers : XFX , Seasonic , Antec , EVGA , Rosewill ( Capstone and Lightning Series ).
Anything >= 550W from these manufacturers will do you fine.