On a recent trip to france i came across the wheel guard technology made by Oredon and picked up a set.
http://www2.oredon.com/en/home.php
This thing is genius, and now i am glad that i will not have to worry about carrying an extra cable lock to secure my wheels. Now i am thinking of picking up some of their other products, their lighting system is of particular interest. Hopefully i can talk my LBS into carrying these products.