Summary
We'll try to have recent versions of as many Linux distributions as possible, certainly including S.u.S.E 8.0 (and perhaps 8.1 if it's out) and Debian Woody. I hope we'll have the latest version of FreeBSD and (if you have networking on your machine) OpenBSD or NetBSD. I understand very recent versions of Mandrake and even Red Hat will also be available.
Please come and help, or bring your machine along.
Note:
Please, please back up your machine before you bring it, unless you are absolutely willing to risk losing everything on it!