Heh, cool, the world vision thing, right? I'm doing that in two weeks or so with my church, too...
I did it last year, too... It's torture at first, but after the first few hours you don't really notice it anymore (especially if you keep yourself entertained and hydrated)
Heh, last year we had a bet going with our youth group leader, that if we could raise a certain amount of money, she'd have to wear a clown wig for an entire week straight... well, we raised enough money, so she did, and it was hilarious... and stuff
Well, anyways, good luck, and hang in there, heh
Moo.