connected to the internal output? I have a new speaker system set up for my iMac, which I'd like to use for listening to music, watching films etc, but seeing as my comp's set up in a working environment, I need to be able to re-route the output to the built-in speakers. To save the hassle of having to delve behind my desk every time to do this, anyone know of any good applications or Apple Scripts to do this switching for me? I've tried writing my own terminal function to do it, but can't get it to cooperate! Any ideas?