Encrypted USB on Mac and XP?

Hello,

I'm looking for a way to encrypt the data on my USB stick that works on both my Macs and on the XP computers at work - where I don't have admin privileges. Any ideas?

David

Thanks for the replies, but everything I have found shows that Truecrypt needs you to have admin privileges on the XP computer - something I don't have on the work computers. I also looked at the PGP option, but the system requirements only list windows flavours.

Any other ideas?

David