There are some cool updates to the class designer in Beta2.
Auto layout of elements: http://blogs.msdn.com/classdesigner/archive/2005/04/23/411213.aspx
Power Toys for the design surface: http://blogs.msdn.com/classdesigner/archive/2005/05/17/418966.aspx
The Class designer is a great addition to Visual Studio and it’s included in all versions of Visual Studio 2005 from Standard up i.e. Standard, Professional, and all Team System versions.