Madhatter.....A damn fine crash course on land nav. Some very good tips in there. But, unfortunately no one asked about land nav., we're talking about gps here. I'm already using a map/compass regularly and have been military trained on the subject, I'm just thinking of adding a gps to the equation.
Since I started this thread, I've had the chance to handle the Onix400, and man, that thing is HUGE! I played with a Garmin Dakota 20 and I really like the touch-screen function. Really easy. I think I've narrowed it down to either the 60csx or the Dakota 20, I just have to bring myself to cough up $250-300 for one. Ouch!