The SliMP3 Ethernet MP3 Player plugs into the hifi amplifier and the network, and plays music from whichever computer is acting as a server (said server, by the way, being open and laudably hackable. Adaptively designed indeed). And mainly on the strength of this review, I bought one. Verdict: Very pleased. A recombinable knot in the fabric of the stuff that surrounds me. Pretty, too.