Okay...a few changes have been made to the list.
7Zip has replaced WinZip; freeware is good.
I've downloaded the FIRST rules now that USFirst.org is up again, along with the Field Elements guides.
PuTTY, Crimson Edit, and FileZilla have been added, because having those utilities just in case we need to reinstall them is a great idea.
The PIC18F8520 data sheet, PIC18 family reference manual, C18 user's guide, C18 libraries and C18 getting started guide are all on there as well, as they should have been from the start. Oops.
And finally, I've added the navigation software from Kevin's site; I was waiting for the updated version, but having this one until it's released can't hurt.
Thank you for all of the suggestions. With any luck, this means that we'll have anything we need to work on our code or to help other teams at competitions. I'm still open to suggestions, but I think we might be able to tackle most of our problems now.
