I am building a file server with the HighPoint RocketRAID 2320 pci-e and 8 WD 400gig HD. DFI LanParty mobo with athlon64 X2, 1gig ram, 1-dvd rom, 1 floppy and ati x550, and a SATA system HD. I was wondering what power supply should i get for this setting? I am afraid i have too many hard drives and i might not have enough power. I was thinking of getting a 600Watts but is that enough? Thank you!