Password login form

I would like to develop a password login form.  I have a table setup with UserName, and Password.  Everyone will have an initial password of "password".  But the first time they log in to the database I want them to have to change their ready-made password.  Then once they've established their new password it will be their password until they change it.  So I also need a way for them to change their password.

One more thing... they should get three attempts to enter the correct password.  If they don't enter their correct password after three attempts I want the database to close.

Has anyone done this before?

--Steve