RPG,
To elaborate, the iTransport PC (power cord) has what is known as a C14 two-pin connector which plugs in to the iTransport; on the other end are the prongs for the connection to the wall of power conditioner. I was suggesting getting a Voodoo Cable C7 IEC to C14 two-prong connector (go to Voodoo Cable website and look under Power Products), which will allow you to use a high-end PC (power cord). I now use either a LessLoss Sig PC or Nordost Brahma to run the iTransport into my Audience AR6 power conditioner and changing PC's has made a huge difference in performance compared to the stock iTransport PC.
I cannot comment on the Canare digicable as I have never heard it. You will find wildly varying opinions on digital cables. I bought my Kharma Grand ref used many years ago. They are expensive, big and fat and unwieldly. The Canare may be great; there are also other reasonably priced alternatives. My point was if you replace the stock PC and use a first class digicable, and have ripped music to iPod using Apple Lossless or equivalent, you can get very close to the sound of the original CD.
Hope this helps.
Neal