Oshmans. Academy. Any sporting goods store should have them.

http://www.polarusa.com/consumer/pro...ductfinder.asp

There's a listing. I think I have an A3 - not shown. It was 40 bucks. Think I got it online actually b/c everything's cheaper online. Shows you the heart rate on the watch. Displays the average heart rate after you're finished. The more expensive ones allow you to store sessions and do a few more extra things, which really isn't necessary.