[salazarpf]

Currently, I own the Garmin Street Pilot 550. Prior to this one I used the 330.
Both are very good, although the 550 is better equipped with features and
performs better.
A factor one has to consider is where one travels. Since I drive to Canada and Mexico often, I wanted to make sure I had a GPS that had the maps for my destinations. Also, the more the channels the better, since the satellites orbiting in space are stationary and the earth is rotating, fewer channels means less likely of good reception in case some satellites are not available to send signals due to obstructions-buildings, forestry, mountains, clouds etc.