try Ernie's DIY PC: http://cgi.audiogon.com/cgi-bin/cl.pl?cablpowr&1050380500Y. Easy to build, cheap to buy and they work great. Check out Ernie's system on Audiogon: he is a little nuts about good power 
These seem interesting, anyone else tried them?
Yes! I have them and would recommend them. I tried a few different cords, Volex, Kimber, and one I can't remember. They all sounded a little better than stock. The only component I heard a large difference on was my preamp. All of a sudden it had a thicker sound, better midrange, and a little more detail. In order of notable change from most to least: Belden, Kimber, Volex, the one I can't remember. Sorry I can't remember the other cable. It was one of the popular recipes resold by some guy on Audiogon.
However, like I said in an earlier post, I have really clean power so, my results may be less drastic than someone with more electonic noise in their environment... and/or worse electrics.
I bought a lot of this cable, made a power strip, upgraded my outlets, etc.... I went through a lot of trouble to see what all the fuss was about. I found the fuss was about the difference of replacing a good IC to a better one.
I expected more... in the end, good equipment sounds better than good cables. I guess I got caught up in the power cord 'craze'... I experimented, inhaled, I even believed!!! But, now it's just a power cable, they make a nice little difference in what I've heard. For the money, Ernie's kits are the best.
-Carl