If you are like me, and spend at lot of time in front of the PC, then this may be a great solution to get some exercise whilst you are working.
The Gamercize PC Sport Stepper fits neatly under your desk, ans plugs into your PC.
If you can keep a steady motion your keyboard and mouse works fine, if you stop, your keyboard and mouse stops working.
You can burn up to 400 calories per hour whilst seated and up to 650 if you use it standing up.
The Gamercize PC Sport Stepper is available to buy online for $199 from ThinkGeek.