Evga gtx 580 superclocked sli...is my psu sufficient ?

[xrecoilxjustinx]

First I would like to know if it's possible to overclock this particular factory oc gpu...and secondly im planning on getting another for sli. Is my power supply sufficient or do I upgrade my psu. And of course if I should skip out on the sli and wait for the new gpu next year and sli them... My new build working great btw.
Corsair 800d.
I7 2600k oc to 4.5.
GA p67a-ud7 b3.
Evga gtx 580 superclocked
Corsair h60 hyrdo cooler
Pc power and cooling 750 w psu.....
8gb(2x4) corsair vengeance ddr3 pc1866
Logitech Z5500 surround sound
Logitech g19 keyboard
Logitech m500 mouse
Old ass gel booby mouse pad...

 

[tecmo34]

I would not recommend running two GTX 580's on a 750 watt PSU. If you look at the the Nvidia SLI Zone site, it doesn't really recommend anything under 900 watts.

http://www.slizone.com/object/slizone_build_psu.html

 

[xrecoilxjustinx]

Have my eye on the ax 1200 by corsair...also...any upgrades I need for case like fans or what have you guess they run hot