Ok, first of all to set things straight this is directed to cable believers; IE you believe that a quality cable will yield better results.
So before I go on further, if you think it's all snake-oil then I ask that you refrain from commenting so it doesn't turn into a huge argument. If there's something you'd like to add that will help out, then by all means go ahead otherwise shut your face :D
Now, when it came to HDMI a simple $5 dollar cable from monoprice always did the trick for me. Why's it any different when it comes to Optical/coaxial cables since they send signal in digital form as well? I'm not FOR or AGAINST, just a little confused on it and would like to hear what other's thoughts are on this. And if a quality digital cable can provide better quality, can the same be said for a USB cable when hooked up from a computer to let's say a Logitech Squeezebox/touch or even a Peachtree integrated?