Just wanted to share my PPC music server that I just wrapped up. I rebuilt a PB 12 1.5 with some new components intending to make it a good netbook and also double as a music server. I wanted to make it as quiet as possible so put a SSD in it and also used the G4 Fan Control program to adjust the threshold on the temperatures to keep it quiet during playback (just took a couple of degrees, which shouldn't pose a problem). It's worth mentioning that Leopard should be the preferred OS for music servers because the Audio Midi Setup Utility has an option to control the external DAC/amplifiers and upsample music files to 24/96 before they are sent. Tiger does not have this ability as far as I know. Anyway, I'm enjoying bringing in all my music and kicking back to listen in my armchair with this sweet little setup.