Replacing your DP18s alone with just about any rim will save you several hundred gms, but I'm still not convinced its going to be worth the cost. You are still going to end up with a heavy, overbuilt, dead-feeling wheel that is only a few hundred grams lighter, which still isn't likely to amount to even 1% of your body weight.

If you want lighter wheels, I would save more money and do it right the first time by building a truly light wheelset that is appropriate for someone of your size and riding style.

Edit: this is a very useful thread....http://www.bikeforums.net/showthread...htish+wheelset