How can I change 'root' to another name? Will it be a system wide change?
and if it is possible, if I 'su' will it automatically try to log into the new admin name?

I prefer it to not be like that, I would like to FORCE myself to 'su <newROOTusername>'

I dont know if people understand me, thank you for any help.

I understand you, but that's just about the most unwise thing to want to do....

firstly things rely on root being called root
secondly this implies that you want your normal user to have root privelidges, very very very bad idea.

do. not. mess. with root. it's there for a reason.

if you are determined to destroy your system at a moments notice, you can add yourself to either the "root" or "wheel" user groups, depending on your distro, but don't.... it's a stupid idea.

No I dont want my normal user to have root priveledges, currently my normal username is 'smokey' but say that I want to have a new root username, such as 'tux'.

So i have have to 'su tux' to gain root priveledges on my system, reason for this, someone might want to login as 'root' but there is no such username as 'root'.....I know its not good to rely on security through obscurity but it can't hurt.

edit /etc/passwd /etc/group /etc/shadow and anywhere else that has the name "root" for authentication purposes

last time i tried this when i used su it gave some crap about not finding a root user, it still worked tho

the only programs what will break are pieces of crap, a program should loopup the "root" user by its number, not name

so basically when you install things programs might give some shit about not finding the root user, and how it has to be done by a user named root ...... anyways, its not the best idea as many programs (more specifically during the installs) crap out, but after install i found i could change the roots name without to much headache (tho, i only had a text interface at the time, and no serious program.... so only rename root on a test machine, or after making up every file you messed with, and be sure to have a boot disk handy to recover the system just in case)

someone might want to login as 'root' but there is no such username as 'root'....
You should never, ever, being running services that allow root to login directly. Almost every sanely written daemon will give you the option of denying root logins somewhere in it's config file. If it doesn't, then pitch it and find one that does. Allowing remote root logins dramatically cuts the time needed to brute force your way to root. Plus modifying the config files is going to be way less of a headache than will dealing with random errors caused by apps X,Y, and Z not being able to find root.