for those of you with too much, you might think of donating or giving away extras to cyclists who can't afford as much. I live in the sf bay area, and I give my extras to AIDS Lifecycle riders who can't afford a whole closet full of bike clothes. You could even send them to AIDS Lifecycle. They have a clothing swap which really helps people out. We even gave a bike to a rider who really couldn't afford a good one.
You could send them to Russ Mendevil
AIDs Lifecycle, San Francisco AIDS Foundation
1035 Market Street #400 San Francisco, CA 94103

Since the ride is a week long, people generally like to have a jersey and shorts for every day because washing stuff during the ride is very difficult.