I am a proud owner of Visio for Enterprise Architects, the only case tool I own, and I've have also purchased and used T.Halpins text regarding the use if this tool. In this text, Terry goes thru great efforts to promote the use of object role modeling, ORM, in conceptual designs. I am somewhat sceptical about why there no other book or author using ORM in their explanations of conceptual designs. I whish I had $5k to purchase a copy of ERwin so I could be in the main stream.
I also contacted Microsoft and asked if they were enhancing Visio for Enterprise Architects in Visual Studio 2005. They told me that it will still ship with it but that there are no changes to accommodate SQL Server 2005.
My feeling is that I've joined the ranks of the "Lone Ranger".