Heres the link
After a bit of browsing, to be fair to Dell, the navigation to anywhere leaves a lot to be desired they have no clear seperation between the US site and anywhere else so any link from a non US part of the site usually ends you on the US one for no good reason. Compare and contrast to Google or Yahoo etc
anyway
http://www1.euro.dell.com/content/topics/topic.aspx/emea/segments/gen/client/en/ubuntu_landing?c=uk&cs=ukdhs1&l=en&s=dhs&~ck=anavml
is the link you need