GPS

Best Handheld GPS unit for use at Glacier National Park? (under $200)? I will be going to Glacier National Park and I want a GPS unit to aid my travel. I am currently looking at the Garmin GPS 60. From what I have read, it is non-mapping. I'm not really sure what that means... The reviews I have read are great. Q's 1. What does non-mapping mean (don't tell me it means it doesn't map, because I know it has a map on it) 2. Can someone suggest a handheld GPS unit for hiking (under $200)

Which handheld gps would be best? I would like to buy one of the following: a Magellan eXplorist 200, 210, 400, or 500LE or the Garmin eTrex Legend, or another one that is good for under $200 I've read a lot of reviews about them, but am still confused. A lot of reviews say one thing, and then the opposite on another site. I want to get one for my mother, so I would like to get one that is easy to use, durable and is good to use for geo caching, hiking and rock hounding. Any advice on what ones are best for these types of activities and how their customer service and support are would be welcome. Thanks.