The is the premium version of Microsoft's industry leading diagramming product

Visio Professional 2010 takes diagramming to a bold new level with dynamic, data-driven visualization tools and templates, and advanced sharing through the Web. Bring the big-picture and real-time data from multiple sources, including Excel, Microsoft SQL Server, and SharePoint lists, together in one powerful diagram. Then see real-time changes to data right within your diagram, displayed through vibrant graphics such as icons, colors and data bars. Using SharePoint integration, you can now easily share your diagrams in real time with anyone, even those who don't own Visio.

List price at Microsoft: $999