It may be interesting to go down to a single chainring up front — TJ and Tony from Biowheels are running a single with a device that won't allow the chain to drop off. This is a great idea if I plan to use this bike exclusively for cyclocross and not on the road.
So the list for Santa/Mommy & Daddy for Bday:
1. 42.5 for the Crank
2. Double chain guard for front chain ring
3. Carbon Fiber fork from Tony
4. New set of wheels?
5. Tubular tires
I also would not mind removing the handlebar brakes and only have the brakes in the shifters. This will take some weight off my bike as well.