I also wanted you to know that I recently bought a video by Denise Austin called "TRIM WALK".It comes with 2 cassettes that you can take with you as you walk. The video gives you helpful tips for heart rate,posture,before and after stretching and has a trim and tone section in the end. If you have a walkman,the cassettes have different music for different fitness levels that you can listen to. For example, the first side of the first cassette is supposed to get you through a mile and a half walk and it goes up with every side. My husband set up a teeny tiny tv and a vcr for me in front of my treadmill,so I watch her video(or aerobics or a favorite music video) and listen to Denise's cassette on a boombox with headphones(my son's usually sleeping when I do it). It makes the time FLY!I highly recommend her video...it's really helped.

Thanks, I'm going treadmill shopping today, I'll look for the video too. I just love all the advice that I'm getting on this site.