2 things to consider, the fist is the GPU and second is the PSU
make sure your PSU has enough 12V capacity.
I use Corsair which are respectable across the line, they are honest with labels
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Corsair Carbide 300R, TX850V2, Asus M5A99FX PRO R2.0, Phenom II 965 C3 BE, G.SKILL RipjawsX DDR3-2133 8 GB, GTX 260 SLI, Asus PA238QR, Windows 7 x64 Enterprise
Asus M4A77D, Athlon64 X2 4200+, DDR2-800 6 GB, HD 5450, cheap 450W, Server 2012