we are working on internal apps using VS2008, C#, WCF, Linq, WF, SQL Server.

We are going to consider looking at tools instead of just VISIO.

From our project we are looking at handling all of these.

Package Diagrams
Sequence Diagram
Collaboration Diagrams
State Diagrams
Activity Diagram
Deployment Diagram
Use Cases

I have used Case Complete back in 06 and thought it was good for tight integration with VS2005.

Any ideas on products and license fees are a close second but we will buy in for the best products.

TIA