Suggestion: Select Author Category when Creating a New User

I would like to be able to select author category when creating a new user on my site. Is there any way you could add the author category selection to the new user form? Now everytime I add a new user I have to go edit the user right away and choose their category. It would skip one step (and make my life a little easier) if I could select new users category right away when adding them to my site.