I'm trying to upgrade my laptop to Windows Vista this weekend so I'll be busy going through the hellish procedure of deciding what I need to back up and the actual install itself.
Any correspondence I receive after this point will likely not be responded to until after the upgrade is complete. I've just backed up all my email from Thunderbird and won't be opening it again until this is over.
Hopefully everything goes well but if it doesn't I've got plenty of Linux CD's sitting around (as well as a second computer).
Update: I did it! It looks great but I still need to install a few things.