Love those juicy PS Audio power cables. For about $15, I can make a fancy-lookin' cable just like them, and save about $200. But of course, it won't be sportin' that kickass logo.

You can upgrade that power cable, but as bb4tb says, it's like saying that putting top of the line plumbing in your house will make better ice cubes. Water doesn't care what it runs through as long as it can handle the flow, and neither does AC.