Garmin 60CX for geocaching and mapping Jeep Trails, has one of the best receivers in the trees that I have ever seen. I also like to connect it to the laptop in conjuntion with Microsoft Streets and Trips for navigation. It gives me a nice 16" screen I can see really well from the drivers seat in the motorhome.
Nuvi for general street navigation (wifes GPS), Loaded with Diners, Drive-in's and Dives points of intrerest so we don't miss one
Lowrance 27C on the boat.
Been very happy with all units. At a recent 4x4 show we took a look into the cockpit of our friends rock buggy and I was amazed to find that he had a Lowrance unit very much like ours in the dash. I asked him why he had a "fish finder" in his 4x4 and he told me that Lowrance makes some of the best GPS units available, they are tough and sealed so dust can't get into them, and that the event planners for the Baja races they do hand out the courses on SD cards set up for use in the Lowrance. They just plug the card in a go. Very interesting I thought.