Click on one of the "United States" links, and then click this file:
It is about a 650meg download. That is the current Ubuntu. It has everything. It looks alot like an Apple interface (not much like MS Windows), but it is very easy to install and configure. It will almost certainly boot up into a GUI the first time, unless you have a strange video card or monitor.
Do not get discouraged. Debian is probably not the easiest distro to install. Come back and let everyone know how it goes. Good luck.