Thanks again for the thoughts so far. Another question - if you buy a moving map GPS, what is the coverage of the map like?
I'm guessing that while you're dodging Gatwick the GPS can't also contain a detailed map of Burkina Faso and the Ouagadougou TMA, so where does the map end and the region marked 'here be dragons' begin? And if you buy one in the UK and then head off to Florida do you then have to pay up for another chunk of the Jeppesen database?
Sorry if this is a dumb question - as I said, I know nothing about them
(edit: as if by magic, the previous post appeared after I started typing
)