sorry for confusing post - i wanted to say: if you never-ever want the gui to be started automatically after boot....
if you never-ever want to start GUI, the quick way is uninstalling xdm/gdm/kdm/whatever login manager you have installed. another solution would be to check the initscripts and just removing the link starting the xdm/kdm/gdm from the rc?.d directory of the respective runlevel you use...
-- Lubos _@_"