GNUWin II is a free compilation CD for windows that is full of open source goodness. I have used it at home to help my wife Carla get used to some linux programs. Once we both can get away from using windows at home I’ll be able to install linux at home and use it as our main OS. Of course I’ll have to keep some form of winblows on there to play the games I like. Of course that situation is changing every day.