I am getting a lot of feedback about the Garmin from friends who love them. Regarding the on/off, my friend has the 305 Forerunner and says that they 405 has an auto on/off, that it only captures data when you are moving. I am just learning about all of these things now, I don't have enough knowledge to argue him on this (but I bet all of you do!) Right now I am on a very steep learning curve.

Also, do you think it is okay to order these on-line? I am having a challenge finding local bike shops that are carrying a decent selection right now. Have taken to calling ahead because it can be a long way to drive only to find out that they only have the basic computer that he already has or nothing at all.