If you want the "heavy" desktop, you could just run, as root:[code]yum groupinstall "GNOME Desktop Environment"[/code] will get you the default Gnome stuff. To get a more "light" desktop, you could [code]yum groupinstall "XFCE-4.4"[/code]
Please note that the XFCE will need the "extras" repo enabled if it is not.