[Zope] what products to use?

Hi all I am trying to implement a site which needs the following- A forum/discussion a database of members (400+) who can access certain parts of the site not available to anonymous users the ability for members to change their details online the ability for new members to sign up online which products or methods should I look at using with Zope anyone running a similar setup? (I am confused by choice what works whats current etc etc!) Owen (newbie!)