We currently run
TWiki for our intranet - it runs on a really old Emachine running Red Hat. I've been hesitant to upgrade because it's working fine, and dealing with the old hardware and OS are a pain.
I was checking out the Twiki site today and noticed they have come out with "
Twiki VM" an install that runs in VMWare!
Looking at the VMWare site - they have a
nice list of applications you can run under VMWare.