Combining pain and pleasure

Jerry Smith writes: "http://arstechnica.com/news.ars/post/20060922-7807 .html Ars Technica reports about the (possible) future of fitness centers: "In addition to the standard array of cardio equipment and weights, Overtime Fitness has several gaming-oriented machines." Equipment has already been used to generate electricity for the grid, now you might be able to go to the gym and have some fitness fun!"