you can use front row with your apple tv. if all you want is music, just use an airport express or if you want more control, use a used mac mini at each location that shares your common itunes library.
if you use airport express units and want to control the mac running itunes, just use leopard's screen sharing pgm or use an iphone or itouch with remote buddy.
if you use airport express units and want to control the mac running itunes, just use leopard's screen sharing pgm or use an iphone or itouch with remote buddy.