These seem neat...
 

I just read about these in BRAIN, so I looked them up. Kind of a neat concept..

http://www.iodupont.com/powercordz_reasons_to_buy.html

Synthetic Cables, lighter then steel, and alledgedly no cable stretch. That alone makes them better then swapping to Electric! :rolleyes:

I've been using them for about eight months now. The only problem I've encountered is that the brake cable does not fit into a Campy lever very well so I have shift cables there too. A little care is required to set them up and they are expensive, about four times as much as regular cables. So far no discernable stretch. When they do require changing I will get them again.