i have a 333mhz Beige i was going to use as a back up server for my 7 other computers. The awesome thing about the biege is that it can use just about any standard ATX PSU (there is a jumper on the motherboard you have to change, it's by the PCI card slots.) As far as sound goes you could try to cram it in the case with the onboard sound from the ISA card, or add a USB PCI card and add a USB soundcard to it. Like the iMic or any others that are available. For use as just a music/print server the biege will do quite well. It can still handle OSX jaguar, though i'm not sure which version of iTunes will work. Anyhow good luck and such.

macDeviant
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2.4gHz 15" MacBook Pro, 1.66gHz Core Duo Mac Mini, 2.5gHz G5 QUAD, 733mHz Quicksilver, 450mHz G4 Cube, 700mHz G3 iBook, 350mHz Sawtooth G4, 350mHz Revs. A and B B&W G3, 16mHz Powerbook 100, 8mHz Macitosh Classic.