I have an old Garmin eTrex Vista and it's tme for a new device. I'm looking at the new Garmin Montana. However, when I bought my Vista years ago, it came with North & South America already pre-loaded. I don't see that they offer a detailed South America CD, except on the less-than -detailed World CD. I am also going on a trip to Antarctica, S. Georgia Islands & Falkland Islands and the Garmin World CD doesn't appear to have those those places on their map. Looks like the only way to maybe get those areas is to subscribe yearly to their satelite (Birdseye?)download option.... I know there are some geocaches down there and it sure would be nice to have a map on my GPS. Does anyone know which product or company (I really like Garmin, but....) provides Antarctica maps?