I like my GPS48...
...but I have one small problem with it- it likes to turn itself off when it gets bumped. I think I just need to clean the battery contacts with an eraser or something, but this problem is a major nuisance when you're trying to use it to get to the next waypoint! I think that the 12-volt adapter is a great idea, and if I had one, it would probably also solve my problem. Also, this GPS can be connected to your PC, if you have the correct cable (about $25, I think). This way you can download corrections to its NavAid database direct from Garmin for free. I think this GPS is a great choice for a new buyer, has enough features for an advanced user, and will probably suit all your needs for a long time to come.--Jon BastienH25 'Adagio'