Gaming With a Headmouse?

seanbhoy writes "Do you have any information on games that can be played by myself? I am disabled from the neck down, and use a headmouse to access the Internet, etc. To get an idea of my disability, I have almost the same injuries that Christopher Reeve had. Can you point me in the direction of similar would-be gamers and computer users? Also do you have any information on games that may work with the headmouse I use?"