JohnE, I would recommend the new Garman Etrex HCX series, or the 60Cx model as well, the HCX has a awesome battery life and I have street,marine and topo maps loaded through a series of micro sd cards of most of the world. It's a small travel unit with common batteries (2 AA) and has been very dependable. I'm eager to see the new Garmin Dakota 20 coming out shortly to see how that fares.