Hi,

Another good line to look at is the Buffalo Linkstation and TeraStation. They all run linux, are eminently hackable, and are pretty cheap too, plus v quiet and low power. You do not need to leave a PC on all the time, just the NAS box.

http://www.linkstationwiki.net has all the info, plus there is an excellent forum as well at http://forum.linkstationwiki.net/

I have two (an LS2 MIPS, and an LS-Pro), both of which run Twonkymedia and FireFly to PCs, a Netgear MP101 and my 770 running Canola.

Cheers,

Alistair