Vista Aiding Linux Desktop, Strategist Says: "Windows Vista has probably created the single biggest opportunity for the Linux desktop to take market share, Cole Crawford, an IT strategist at Dell, said in an address titled, 'The Linux Desktop—Fact, FUD or Fantasy?' at the annual LinuxWorld Conference & Expo here."
I have been saying the same thing Vista will help both Mac OSX and Linux.
Remember we will be installing Ubuntu (or the Linux distro of your choice) as a group. I have heard from a lot of Linux users that Ubuntu and Kubuntu are the way to go. Nothing to install and the ease of use is very good.
They both have a Live CD (a CD you can boot to and not mess up your windows) you can try and most things work out of the box.