Can I have a Sharepoint 2007 lists use cascading drop downs?

I am building a user list in Sharepoint.  I am creating the name using the people and groups property which is linked to our active directory.

I also need the manager and name and email.  Is there a way to link manger and email to the name? Otherwise I have to repeat the steps over and over.  I can set the property to email and manager, however, none of these fields are linked.