Our friend Kampf – fellow DEF CON Goon and music director for SomaFM’s Fluid and Vaporwaves stations wrote a handy guide for a Raspberry-Pi-based set-it-and-forget-it audio stream receiver. At DEF CON, we use Raspberry Pis to get the music from the main chillout lounge to all the various other chillout lounges across the conference locations.
Check out his guide here: http://zzq.org/?p=119