How can I make my own registration page for forums, read inside.

[aebstract]

Basically, my idea is to turn registration off to the forums, then I can create my own registration form within my website, and once registered there it should create the users account for the forums. I'm sure this is possible if I pass the right variables and whatnot over to the forum's database? Are there any tutorials around on what needs to be done or can anyone explain this maybe? I use php/mysql.. I want my users to be able to login/register on the website and that be good for the forums too.

Thanks!!