After much musing about transferring my iTunes library to a NAS I still have not made a move. I was going to get the LaCie Network Space (unlike some here I never had any problems with two Firewire hard drives form them) but someone mentioned the Lacie does not have a sleep mode.

I am based in the UK so any suggestions for a ready-made, Mac compatible NAS that has very low consumption when the computer(s) get switched off at night?

Thanks.