Dh and I do this one. It's gone up this year, it's $150 to ride. It's $100 to become a member of the peloton project, which you have to do (last year you received a t-shirt) and then you either have to kick in another $50 or raise it. The deadline for raising funds is the first part of September. Well, they'll take funds after that, but that's the deadline for counting towards the awards. If you look up laf.org, and look under the peloton project and events links you should be able to find answers to most of your questions. I'd be happy to answer any that I can based on our experiences.
Steph