I'm looking to invest in a Heart Rate Monitor. At first I liked the idea of a calorie management system like the Bodybugg but I've heard that it isn't very efficient for cycling which I do quite a bit of. So instead I'm looking for an HRM that doesn't cost more then $200 that I can wear to the gym for classes, machines, etc. I don't mind wearing a chest strap. Just looking for some reviews from people who have had hands on experience. TIA.