Migrating from VMWare to Sun's Virtual Box
Today I went to start Windows as guest in my Ubuntu install of VMWare and, boom, VMWare has broken itself during one of the prior kernel updates (because it doesn't use DKMS or release patches quickly enough).
There had recently been a good thread on this on the Manchester Linux User Group's mailing list, so I decided to give migrating to something that more sensibly works a go.