06-13-10: Demianm
...as long as you cover some obvious basic aspects (good cooper, good thickness, good shielding, some kind of braiding and most important good contacts/connectors) there is nothing more to win over that...
Thanks for defining your criteria.
Based on your statement, I personally see no reason to spend time discerning the fine points between Chinese Volex, or Belden or even Pangea power cable. At least as far as the Volex options are concerned, the wire is going to be designed and built as you specified, and I sincerely doubt you would be able to hear a difference in copper.
So, your quest seems to be causing some paralysis by analysis, unless you're the type who simply enjoys the research.
I say buy some power cable and proceed with your project.