I am planning to make invisible ghosts fly through my séance room using several stereo speakers, three i-pods and a couple of laptops. Life would be much simpler if I could burn some multichannel surround-sound DVD and spend $60 on a computer surround-sound speakers. Does anyone know how to create multichannel surround-sound? I don't want to spend more than $100 on software and I am not going for studio-quality. I just need three to four ghosts circling the room.