VirtualBox
From Eugene Eric Kim
Installation and Configuration
I'm using the non-free version, which has some additional support.
When I've played with VirtualBox in the past, in order to install my copy of Windows Vista, which is tied to the BIOS on my Dell Inspiron 531, I've had to configure the BIOS DMI, which I never bothered doing. No need with VirtualBox 3.0! Installation works out of the box. Yeah!