Yeah, on the subject of the database, I believe it has to be Atlantic International. I've already noticed that some places only sell the US database unit.
Incidentally, my flying costs are only £20 ph, but that's one reason why I now want a GPS - I can now afford to fly more and go places rather than do 3 circuits every 6 weeks!
I'll write to Garmin and ask them if Etrex string is transfereable to the Pilot III