Nice! I have a similar setup. 20 gigs of MP3s (I'd use ogg, but my hardware mp3 player hates it so that's out) being served from a central location. Wireless is a good thing too. Every speaker in my house is attached to a computer running headless (without monitor). Every time I want to switch up a song, just ssh into it and change whatever's playing from my laptop! Linux is brilliant this way.