I have really enjoyed walking at my desk over the last 6 weeks or so. I rearranged my office a bit to put a TV in viewing range which has been really nice for Sunday and Monday night football. I also play computer games and its great to know while I play games and watch football I can get some exercise as well.
I have been evangelizing the treadmill desk idea to some other folks I work with. They also work from home so I know they spend a lot of time in front of a computer and not moving around much.
Also got an invite to by Brad to join http://officewalkers.ning.com . Thanks Brad for the invite!