Does anybody have any recommendations for cameras under $500 that could survive trips to places like Egypt, the Galapagos, etc.? I often travel in the middle of nowhere or in places where there are no stores nearby. That means no replacement cameras, no disposable cameras, and no buying more batteries. On my last few trips, my cameras died mid-trip. I need something rugged that can potentially get wet and especially, is heat-resistant. Egypt was near 120 degrees F in the shade and while shooting my camera was out in the sunlight, probably for hours at a time. I found one recommendation in this forum for the Canon 40D, but it runs about $1200. If you have personal experience using cameras in these types of conditions, please suggest anything less expensive that you have tried.