I think, you will find your own answers in this documentary by Kate Ray.
Quick and easy way of learning Microsoft Expression in five days. I would recommend my senior students for their Web Design course.
In our laboratory Expression Studio Pro 4 is installed and available for your use. This training also works on Expression Studio 4 editions.
Must have links for developing windows phone and XBOX 360 games and applications.
Faculty Resource Center. Courses, presentations, materials about XNA game development. All are free and can be used in your lectures.
Free book: A Simple Introduction to Game Programming With C# and XNA 3.1
Get them before it is too late!