all you need is every GNOME and KDE rpms to be installed, look for them on your installation cdrom, and install every package that relates to gnome and kde if you want to. For ximian gnome
$ su
Password: [Enter your root password here]
$ lynx -source
http://go-gnome.com/ | sh
but I know that the installation is GUI driven, I am not sure if it works in console, give it a shot.
For manual installation
http://www.ximian.com/download/instr...ibution=manual