Deep, you can have a play with the Sonos demo on their website -
Sonos Digital Music System to stream digital music wirelessly from PC to any speakers in your home
It is an excellent system, but just too expensive IMO for the amount of time I would use it, especially after buying powered speakers and a NAS as well, I'd be looking at well over £1k just to play the odd tune or two in the kitchen, or at parties.
Mind you, life is short and you cant take it with you
