Have you seen ASP.NET 2.0 Training Center? Besides being a great source of information on the ASP.NET 2.0, it is currently offering a great deal: attend 3 webcasts and receive free Visual Studio 2005 Standard + ASP.NET 2.0 book!.

VS 2005 Standard, compared to Express editions, is extensible, so you can start using useful add-ins, like, for example, CSS Properties window.