Pick up a Canon S95 on the cheap. You will be blown away at how good this point and shoot is. Having said that, if I was going on such a trip, I would lug my DSLR. Camera phones are good in a pinch but are no match for a good point and shoot or any DSLR. Look at the Nikon D3000 kit for a cheap excellent DSLR. Have fun on your trip.
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