I bought the Exlorist 200 after going to Best Buy with the intention of buying a Garmin Legend. Taking a page from my wifes playbook, I used the Explorist for two weeks, (keeping the scratch guard on the screen), and returned it after finding the Garmin somewhere else.
After using each for about the same time, I have to say that the Garmin, for $20 more, is the more functional unit, and the download capability makes them very different units, with Garmin being well ahead.
The Magellan is functional, but the Garmin just has more for the money.
All that said, I have been using GPS for an entire month, so I may not exactly be an expert.