If you are looking for some more samples to play with in C# Expess, I've written two projects that have just appeared on MSDN. Both consist of an article, and a project for you download and open right in your own copy of C# Express.
Web Browser Express
This project will create a neat tabbed web browser with a search box that talks to the new MSN Search Engine.
A simple graphics program for loading, processing and saving images. Add your own filters and other features.
If you have ideas for other C# Express projects, please do feel free to suggest some!