I have an iMac and a 20" Cinema Display. When watching TV on the Cinema display, the sound of course still comes from my main display, the iMac. I am getting kind of used to it but it is a bit strange to see the picture to my right and the sound coming from straight ahead. It would be better if I could put speakers next to the Cinema display which only played the sounds coming from that display while leaving the iMac to have it's own sounds. I don't think this is possible but maybe someone has figured it out. Thanks.