Actually, all in all, i would say that it is a decent PSU, i have never personally went with Cooler Master but from the looks of it, 80+ cert, 60-amps on a single 12v rail, 4 x 6+2-pin PCI-e connectors... on paper that is a decent PSU and the price is good too.
Would 650w be enough to power a hdd, an i5 750 oc'ed to 3.5ghz and two 5770s oc'ed to about 960ghz and a dvd burner? I have an asus p7p55d pro and 4gbs gskill ram with an older antec 600w psu. I oc'ed my components previously and it became unstable. Someone on here in a previous thread said that 600w might be just barely cutting it and suggested a more powerful psu.