I've been very happy with a glass optical cable that I purchased from this place.
http://www.uniqueproductsonline.com/gltodiopca.html
I purchased it from their ebay store. For less than $20 shipped, you can't go wrong.
http://www.uniqueproductsonline.com/gltodiopca.html
I purchased it from their ebay store. For less than $20 shipped, you can't go wrong.