Found this one on Bruce Eisner's Vision Thing, a fascinating blog I can't plug enough.
In a recent post he describes a new bio-feedback software game. The game uses bio-feedback instruments and your PC to teach meditative relaxation techniques. By working through the game, you learn how to quickly control your body rhythms (such as pulse)... techniques with obvious benefits in the real world. Deepak Chopra is associated with the project.
I may give the software a spin... if so, Ill post a review.
Here's a link: