[cpn]

I want to start working out of a limited user account and use the administrator account only when necessary. Is it possible to transfer all the files from one account to another? Or can I just change the types of account: create a new administrator account and make the old administrator account, a limited user account?

[Big Mac]

As you guessed, you can change your existing account to a limited account as long as you create a new admin account.

[anti-sleep]

What benefits are you hoping for by using a limited account?

[cpn]

I remember reading that it's safer with respect to security. Do you have any extra advice on that?

[ghporter]

It is indeed safer both from a security standpoint and from a configuration standpoint. Not only will much of the OS X internals be hidden or relatively inaccessible from a limited user account, but as a limited user, you'll have to log in as the admin to do more things-tasks that you could have done without thinking when logged in as the admin. This is a Good Thing® because you have to stop and think about what you're doing-"If I have to provide an admin password for this, is it smart for me to do it?"

[cpn]

Many thanks for your replies. It is appreciated, especially in a PC environment where almost no one knows much about macs.