I'm new to the forum and to CoffeeCup, so please be gentle!

It's my intention to create a registration form for my company's website. I want the form to sign new members up, instantly providing them with a password so they can log in to a separate hub on our website. This will enable us to receive their information and keep track of their interest in our products.
We don't need anything fancy upon log in: just a simple page where we can place documents that only members can access. Is it possible to do this with Coffee Cup's Form Builder and Website Access Manager or are there other programs that I should use?
I've tried to search online and in various forums for clues, but I'm none the wiser. Therefore, I'd appreciate some pointers if I'm looking in the wrong place!
Thanks in advance for your help

Adam