This spring, I finally got the e-mail from Garmin I'd been waiting for, announcing Mac support for Ant+, along with the latest version of the watch, the 405CX, which adds heart-rate-based calorie consumption (or as I read it: how many onion rings I can eat tonight). This time, after a simple software install, my workouts instantly transferred to Garmin Connect, the company's incredibly well-designed and easy-to-use online training center, and it's a kick. You can not only see your stats -- heart rate, pace -- for each split, but you can marry them to a movie of an actual map of your run, so you can see where you typically slack off and where you speed up. Little sliders move for each data point. Being able to map your heart rate also makes it easier to track your fitness: If you can do the same hill with a lower heart rate, congratulations, you're in better shape. Have another onion ring.