Welcome to LQ.
There are plenty of distributions that are good for newcomers to the Linux world. Even if you do choose a point-and-droolish distribution (friendly mocking

) where everything is configured for you, you will still have to learn quite a lot if you're coming from Windows.
Redhat 9 is quite dated and has be superseded by Fedora Core. The current stable version of Fedora Core is 2, I believe. SuSE is also a big hit among a lot of people (especially europeans it seems), and so is Mandrake. Pick one or download them all and try them out. Knoppix might be a good start too - it boots and runs entirely off of a CD-ROM, but it can be installed to the hard drive like any distribution.
Major distributions that are generally considered a bit less user friendly (more or less correct, depending on how you look at it) include Slackware, Debian and Gentoo.
Håkan