I have set up my iMac G5 to use iTunes 6 to run to speakers via USB in three of the rooms of my house. This works ok, but the only way I can change the output to the speakers I want is via System Preferences> Sound> Output. Does anyone know if there is any sort of script or programme which runs in iTunes so you can change the speaker choice, a bit like you do with Airtunes via Airport Express? In addition, there are times when I would like sound to go to ALL the speakers sets at once, is this possible? If so, how could I do this? Iam scratching my head! Any replies would be gratefully received, thank you, Stan