I've been playing around with VB Express with SQL Express DB.  I thought that one of the really cool features in the VB Express UI was the ability to drag a datasource table to a form and get either a datagrid or basic label/field data entry controls.  I must admit that I picked this up by visiting Channel 9 often.  It was also very easy to create a new Database, Tables, and Queries from within the VBE environment. 

I have also downloaded the other EXPRESS products, but have not yet had a chance to play with those.  They all look like fun!  I especially like the Visual Web Developer Express idea. 

I am looking forward to see what the Express Manager tool for SQL Express will look like.  If it has some cool features like VBE does, I'm sure it will be a hit too.