Since buying my mac pro I have been using a creative x-fi xmod and headphones. Recently I picked up a 30" lcd and started watching more movies and tv on the mac. I hooked up an old set of logitech 5.1 speakers up only to find out that I am limited to stereo as its inputs are mini jack and not optical or usb. Now I am trying to decide between a set of 5.1 logitech speakers that have usb or optical ins or pixking up a cheaper sound bar like the sony htct100. I kind of like the idea od the sony bar as it is just slightly wider then the monitor and only 3 to 4 inches tall, so it should fit nicely under the monitor. Any opinions or other ideas?