Yay, another comes over to the light side
Okay, for an application list, try
Google's directory of software lists.
Mind you - redhat is great to start on, but in a year or so, when you're comfortable, you might want to consider switching to Debian - the debian package installer works better than the redhat one, in that debian gets all the packages you need to run the one you asked for, whereas redhat assumes you've gotten all of them already.