Ya offf a computer with the right equipment. You need a grapic card that you can plug your sound s/pdif into for it to work. Highend cards are geared toward gaming so alot of them dont add the s/pdif function.
this would be a good choice: http://www.newegg.com/Product/Product.aspx?Item=N82E16814500007
if you were going through a HDTV, but since you are using a monitor instead of a TV you probably are running speakers from your sound card so you dont need to worry about it. HDMI is the best signal if your monitor supports HDMI other wise DVI is good as well. If you get a capture card amke sure to get a digitalone and not a analog one.