Also one question. I bought a modular PSU but I'm gonna buy the Corsair - Can I use the modular cables on the Corsair's one?
You will probably have to look at the specifications of each PSU, and the plugs. I have not had more than 1 modular PSU, so I can't say if this is possible or not. On my OCZ 600w, the plug in's look like universal 6pin and 8pin, but I have nothing to compare to.