Thank you all, I'll try the staggerd spin-up. and if it doesn't work I guess I'll buy a BeQuiet or OCZ PSU. <-probably BeQuiet because I don't have to buy them on-line and they have a lot (8) of SATA connectors.
600W: +3,3V: 28A, +5V: 40A, +12V1: 20A, +12V2: 20A, -5V: 0,5A, -12V: 0,8A, +5VSB: 2,5A
750W: +3,3V: 24A, +5V: 35A, +12V1: 20A, +12V2: 20A, +12V3: 20A, +12V4: 20A, -12V: 0,8A, +5VSB: 3A