Private Individual User Pages

Hello,
I’ve gone through the forums and searched the net and haven’t really found much. I’ve most likely overlooked the answer so I apologize for the newbie question.
I would like to create a site that will allow certain users to login with a username and password that I provide, or one they create on their own, then be redirected to their personal page where they can view information/messages that are specifically tailored to them and no one else. I would also like them to be able to view, print, and download files that I place in their personal directories that only they have access to. And all of this should be done securely.

Thanks for the help