Quite simple, Shimrod. Download and try one or more of the popular live Desktop versions. Installation is easy but you can try them from CD (and often from pen drives) without installing any.

Here are a couple to start you off:

ubuntu
is the most popular.

OpenSuse is my preference. They offer KDE and a Gnome live CD versions. I prefer KDE.

Just burn the downloaded ISO images to CDs and boot from them.