Not a hi-fi wizard but this toslink 10ft cable fits my needs and cost me a fraction of some of the more expensive name brands. Easy setup from my Sony XBR to my receiver and booyah, great sound from my polk external speakers.
This Toslink Digital Audio Cable provides you the cleanest possible signal, even at extreme volume levels. Optical cables transfer the signal using light; thus completely eliminating any chance for RFI, EMI or ground loop interference. Connect to your DVD, CD, Mini Disc, DAT other digital audio equipment for clear, full and richly detailed sound. These cables use 1mm low-loss core, low-jitter synthetic fiber and heavy metal connectors to dampen vibration, giving you the ultimate listening experience. Gold-plated ferrule prevents corrosion and provides for maximum protection of the fiber tip. Precision polished fiber tips for maximum signal transfer (includes tip protectors).