im a newbie in Linux. I have installed Fedora 6 plus Gnome(default) desktop. Can i also install KDE? Can Gnome and KDE coexist? I am asking this because there are good features in both desktops.
That is possible. Fedore should provide you an option what to boot: KDE or Gnome. It's of course possible to run Gnome apps in a KDE environment or KDE apps inside Gnome.