I wanted to add another link to the mix. Chris Smith wrote an F#/C# WPF game. Just more food for thought:
http://blogs.msdn.com/chrsmith/archive/2008/09/04/simple-f-game-using-wpf.aspx
http://blogs.msdn.com/chrsmith/archive/2008/09/04/simple-f-game-using-wpf.aspx
