Allow admin to confirm users without confirmation email?

As the Super Admin, I would like to be able to add users to a site without having to send a confirmation e-mail. I occasionally have people let seem to have difficulty with the confirmation e-mail for various reasons. It would be a lot easier and quicker for me to simply add them as a user to the site and tell them their username and password.

Is there a plug-in that will allow me to do this?