I just retired my B&W G3 450mhz (overclocked 400mhz) in leau of an eMac, but I have been thinking of putting it back into active use as a server. It runs great still, and should serve up a backup of my files perfectly for a long long time.

All I need to do is find a copy of Mac OS X Server 1.2 or Mac OS X Server 10.4.