The new security framework in ASP.Net for membership and role management improves developer productivity.
I have provided a number of links in my earlier post, but here are some specific to this topic:
MSDN article on Whidbey ASP.Net membership features (includes example code)
I'll post some extensions to the available examples shortly. Specifically, the creation of a new user registration form and the use of the SQLMembershipProvider (as opposed to the Access provider) to provide persistence for the new membership information in ASP.Net Whidbey.