I am also interested in checking out the sonos as a transport... mainly because i have yet to see such an attractive remote control. even the pronto for SB2(3) pales in comparison.
I have been searching the sonos forums to find out if theyll make a cheaper non-amped version, but for people starting out the 50Wpc Tripath amp might be suitable.
Saving the $900 USD I'll need to try one out...
-Rick