Are they worth the money? do they actually do what they say on the tin?!
I got a 101 for about £60 - doesn't do what Richard's does, but it tells me how far I've run, how long it took, and what my best and average pace was, and keeps a record of my runs by day and week. Can't make head nor tail of the maps but it does those too :d It might do other stuff too, but I would have to RTFM...Hmm it is tempting but I hear they are quite expensive