A Contact Details web part shows a single contact picked from the user list.
A Contacts List webpart is just a "dumb" list - i.e. every field needs to be manually filled, including email address, and I think is intended for external contacts.
Any suggestions how I would go about showing a list of internal contacts picked from the user list?
So far I've faked it by creating several Contact Details web parts, and hiding the chrome (title bar and border) for each, but it's rather slow and unwieldy and doesn't have any of the advantages of being a real list.
As it stands I don't have any tools other than out-of-the-box MOSS 2007.