For £350 you might get hold of the ever-so-up-to-date Montana 650, or maybe the 600 which doesn't have the camera built in.
I asked something similar in here http://www.horizonsunlimited.com/hub...rmin-gps-62780 and there are not a lot of views about the best value Garmin but therein it amounts to the Montana at the high end of the market and the 60cx/60csx at a lower price. Both are waterproof.
A few folks in here say they use the Nuvi series and waterproof it "as and when".
As for the software aspect; Tom Tom don't seem to have any free software - the free software market appears to be concentrated on Garmin and the apps for smartphones. There are threads in here about both of those options, but they don't differentiate between regions/continents, not so far anyway. In other words, I have never seen anything in here that points to one particular freebie being better than any other for certain parts of the world, with the possible exception of "ozzie explorer" (or some similar name) which covers the obvious location.
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Dave
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