I'm sure this thread will be overflowing with replies within a few minutes. :P (edit: I was wrong)
The concept of the root user is for the protection of the computer from hackers and viruses. (of course theres a lot more to it). You can certainly change permissions of certain things for all users, but it depends on what you really want to do. For example, changing the permission of /sbin may be a bad thing to do, but changing permissions for sound, shutdown reboot may have to be done.
As far as logging in as root is concerned, "su" is the best way. But if you want a GUI, there is something called "login in a nested window" but that is in Gnome. I dont know of there is a similar thing for KDE.
I hope the info helped
Last edited by akudewan; 09-07-2004 at 06:09 PM.