PSU for 3570k and GTX 580

CTORH

Honorable
Nov 19, 2013
7
0
10,510
Hello,
can someone recommend me a cheap and reliable PSU for a future system I am assembling - core i5 3570k, probably I'll OC it and PNY GTX 580 on Asus P8Z77-V LX. I've heard that I need at least 600W.
Thanks in advance!
 

CTORH

Honorable
Nov 19, 2013
7
0
10,510
And if I have to choose between Corsair CX600, Seasonic S12II-620 SS-620GB and Fractal Design Integra R2 650W ?
One more thing I forgot to add is that I have 6 HDD at the moment.