That list is not really complete --- just 2 weeks ago, we needed 2 "small form factor" desktops for a project, so I emailed our Dell sales guy, mentioning "we'r

That list is not really complete --- just 2 weeks ago, we needed 2 "small form factor" desktops for a project, so I emailed our Dell sales guy, mentioning "we're going to install Linux on these anyway, don't care about the windows license". 3 days later, we had 2 x OptiPlex 3050's, with a fully functional Ubunutu image right from Dell. I'm not sure the Linux option was available for that via their web site, but I have a sneaking suspicion that they support Linux on more systems than their site indicates.