VirtualBox 3.2.0
Whilst I’m waiting for my new hard disk to arrive for my Core-i5, I needed to use VirtualBox, so I decided to install it on my E5300 fileserver, which luckily has VT-x support, and of course is running a 64-Bit Ubuntu 9.10 install with 4Gb RAM.
It actually was easier than I expected, similar to the Fedora method you just add the repository to your /etc/apt/sources.list, import Oracle’s GPG key and run “sudo apt-get install virtualbox-3.