Just bought a Garmin GPSMAP76. Only had it a week.
Was told by several "salespeople" that the GPSMAP 76 and GPSMAP176 (a little pricey for my backup gps) can download map charts BlueChart maps & MapSource maps. It uses WAAS. Uses 2 AA batteries and has car adapter.
It's light. good size screen. Also has moons, tides, etc. builtin. Includes electronic compass. Has PC interface cable (serial, so I'm going to get a serial to USB adapter for it.
Haven't downloaded any maps yet.
