Hey. I've been using the Garmin 220 with HR strap, and getting a lot from HR training. Unfortunately I keep getting problems with the strap; it's basically losing its accuracy and gives out some wild readings, which imply that I'm on the verge of going to sleep! I've already taken it back once for a replacement.

I think that TomTom have a watch which measures HR without the need for a strap - anyone got it? Or got a watch+strap they find really reliable?