Virtualbox

http://virtualboxes.org/images/ “We provide pre-built images for several open-source operating systems. Please note that: Every image contains the latest software as of the day the image was built. Performing updates is on your own, and may require looking for documentation to read using your favourite search engine. Default usernames and passwords, where required, can be found next to the download link of each image. You are warmly invited to create your own user, or at least to change passwords, if you intend to use the images in a public environment.” ...

http://virtualboxes.org/images/ “We provide pre-built images for several open-source operating systems. Please note that: Every image contains the latest software as of the day the image was built. Performing updates is on your own, and may require looking for documentation to read using your favourite search engine. Default usernames and passwords, where required, can be found next to the download link of each image. You are warmly invited to create your own user, or at least to change passwords, if you intend to use the images in a public environment.” ...

http://forums.virtualbox.org/viewtopic.php?f=3&t=15679 example Xorg config for recent ubuntu/fedora

https://help.ubuntu.com/community/VirtualBox

http://blog.subaquatic.net/archives/virtualbox-p2v-success/ If you need to P2V your windoze install into virtual box vm – you can follow a true-hacker way [http://forums.virtualbox.org/viewtopic.php?t=1404

http://ubuntuforums.org/showpost.php?p=5145028&postcount=19 “sudo VBoxManage setextradata global GUI/MaxGuestResolution 1920,1200”