Just got a charge HR just recently Dave... I do think it prompts you to move more and I like HR monitor as it gives you an idea as to how high impact your excercise... And it's reassuring to see that I have a relatively healthy resting heart (59)...
I like it so far and it's very satisfying when it does its little 10k disco on your wrist...
I'm happy with it :-)
If you get one look me up and we'll have a weekend battle to see who has moved the most ;-)