R – Multiple copies of a Sharepoint list view

You can show additional information by modifying the web part, clicking "Edit the current view" and adding your additional column. This will show up underneath your body text. If that is not where you want it.. you'll need SharePoint Designer.

Yes, use a list that includes multiple content types. You can define custom content types at a site level and they will be available within that site and all sub sites. You can enable content types on a list or library and include multiple content types for that list or library. You can also have a content types in several lists and libraries.

Content types can inherit from one another as well. So, you could have a "Base Agenda" content type and have other content types inherit from that. Content types go beyond just metadata and deal with behavior as well. You can assign workflows to a content type and in MOSS you can assign policies (e.g., expiration policy) to content types.

http://msdn.microsoft.com/en-us/library/ms472236.aspx