The Sound Professionals Glass Toslink cable has received pleasant reviews on Audio Asylum, and occasionally show up for sale on AG and are snapped up immediately. Their website is:
http://www.soundprofessionals.com/cgi-bin/gold/category.cgi?category=home
If you wish, do a search on AA for a review of the cable written by Todd Krieger
http://www.soundprofessionals.com/cgi-bin/gold/category.cgi?category=home
If you wish, do a search on AA for a review of the cable written by Todd Krieger