Hi I read quite a few articles about this but I'm a bit lost... I'd like to get a 5.1 speakers set to have speakers around the room and if possbile have surround sound on HD movies supporting this. Here's my setup and I'd like to check if this would work. Also if you have any recommendations for not too expensive 5.1 set that would work with this I'm all ears. Basically I stream music or movies from Mac to Apple TV (VLC or QuickTime). TV is plugged in to the TV via HDMI. At the moment I use the TV output jack and have plugged a 2.1 speaker set to it. Could I simply use the same set-up with an SPDIF/optical out from TV to speakers to have regular sound when listening to music and surround sound when watching a movie that support 5.1?