coment on GPS 48.
Just a heads up to let you know that Garmin will refurbish your GPS 48 for about $100. Mine failied twice, without warning. The first time was an internal battery (like the kind in your computer) that they replaced at no charge very quickly, because the battery was less than 2 years old, I guess. 1 year later the unit failed inexplicably and I was told that even though the unit was less than 3 years old they would not fix it but only refurbish the thing at your expense. I chucked it and bough the GPS 76, which I'm very happy with.So, what's the point? The point is...they are not reliable so get a back up. The newer models are much better.