I upgraded to BB7s on the front end of my commuter and it has been totally worth it. I used the Jagwire product from Nashbar which seeker333 mentions. It's a great product and very worthwhile...the first time you ride in the rain you'll know it was worth it! I cut my cable housings with a Dremel tool using a carbide disc bit, which works perfectly. However, there are steel strands in this housing. Not a problem for the Dremel though.