At this point in time, you should be very comfortable installing applications both from yum and, to a lesser degree, from source. There are several more applications that I find to be mildly useful, from time to time, and so, for the sake of completeness, I've included a list here. Obviously, at this point, what I think is important versus what others think is important is purely a matter of choice and preference. As a result, I suggest pulling up yumex and browsing through the applications that are available to see if there are any of interest to you. Just to provide myself with some documentation, I have included a list of a few additional applications that I have installed on the system for my personal records:
~> sudo yum install abiword bluecurve-classic-metacity-theme bluecurve-gnome-theme bluecurve-metacity-theme crack fedorainfinity-gdm-theme fedorainfinity-backgrounds ffmpeg gdl gnome-backgrounds gif2png gsview gnome-theme-curvylooks gnome-themes-extras ghostscript-gtk gstreamer-plugins-bad gstreamer-plugins-bad-extras gstreamer-plugins-farsight gstreamer-plugins-schroedinger gstreamer-plugins-ugly nfswatch leonidas-backgrounds-* xchat xchat-gnome xorg-x11-font-utils xorg-x11-xinit-sessionPress 'y' when prompted to install the programs and any additional dependencies. After it is installed, source your ~/.bashrc file:
~> source ~/.bashrcAny of the installed programs can now be launched from the command prompt.