Microsoft Expressions Blend has some very useful functionality and I just wanted to share this.
Here is the overview for SketchFlow by Microsoft: http://www.microsoft.com/expression/products/sketchflow_overview.aspx
Jeff Rix who works with me created this in about 15 minutes within SketchFlow. It is much better UI prototyping than Excel or Visio.
I really suggest this application to anyone who is a BA or Developer.