I have an HP Pavilion Slimline Desktop PC (S3220N) connected to my 37-inch LCD Vizio in my living room. I use Windows Vista’s Media Center and Boxee, mostly Boxee. I was wondering if it’s possible to get surround without having to add another box (receiver) to my setup, is there something like an audio card that will have the connections for 5.1 or 7.1 surround sound speakers? Do they really do the job well? Where can I find different media center setups?