Linux users have a lot to look forward to in the next several weeks, as three of the biggest Linux Distributions (distros) will be releasing new versions.
Ubuntu is a great Linux distro for someone looking for a rock solid easy to use desktop computer. It's easy to add software, keep it updated, configure printers, works with cameras, etc. There are lots of online resources if you ever need help with Ubuntu. This is the most highly recommended distro for new Linux users. Give it a look.
Fedora is a distro based on RedHat Linux, and it has been around a bit longer than Ubuntu. It is geared to more intermediate or advanced users of Linux, though it too has a very easy to use desktop.
OpenSuse is Chad's preferred distro. It too is geared towards intermediate Linux users. It is really polished, has a great new menu interface, and is rock solid. OpenSuse has great support for adding software, an easy updater, and all the programs and tools you will ever need.