How about this product? Made to replace Romex, it's not UL listed for use in walls.
http://www.lessemf.com/wiring.html
At $1.75 a foot. rolleyes

It comes from this place:
http://www.lessemf.com/emf-shie.html

They list among their products shielded boxer shorts at $109.99, and a faraday cage that fits over a king-size bed for $999.00

They've also got a "High-Frequency ElectroMagnetic
Pollution Remover" that plugs into duplex receptacle, at 20 for $659.00! bash