Love using a heart rate monitor but hate the transmitter strap? The Mark of Fitness MF-180 Exercise Monitor might be of interest to you, since it uses a finger sensor instead of the chest transmitter.
The semi-glove features what you have come to expect from a heart rate monitor (Heart rate monitor, calories burned, target zones and recovery rates), and it includes calorie expenditure tracking.
If you routinely walk in a place where radio interference wrecks havoc with your chest strap, this could be a good solution. Not to mention it has that cool sport glove feel, of course.