Thanks for the tips (I've been riding for 5 years now - this shouldn't be so difficult)! I will definitely incorporate some of them this weekend. I have Allen Lim's cookbook and really should try a few recipes out to see how they agree with me during a ride.

I think the overall umbrella is that I really need to get a metabolic test done to determine exactly how many calories I'm burning. At least armed with that knowledge, I can know for sure how much I should be eating for optimum performance. Anyone have any experience with that?