Membership and role management is easier in ASP.Net 2.0 because of the built in membership and role management services.

A great place for videos and tutorials is at ASP.Net

More information can be found with the quick start tutorial Securing Your Application

You can also watch the video Secure my Site using Membership and Roles?

The article and video mention controls such as Login, LoginView, PasswordRecovery, ChangePassword and CreateUserWizard.

 The video is quite short and its easy enough to follow along using Highlander, you can see some of the results in the 2 screen shots below.

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The controls make use of user services built upon the provider model. More information can be found Here. The implementations provided out of the box are pretty limiting, just targeting SQL Server, Sql Server Express and Access. Here is where it gets really interesting and extremely cool because [Codegear] have implemented their own set of providers confirming to the guidelines as laid out in the link above. It's best to read Steve Shaughnessy's blog post here . Which now means you can target Blackfish and other databases through the dbexpress bridge. In the diagram below are the options you have when hooking up a SqlDataSource component.

More to come..