I'm heading to Panama in February to do some geological research, and it'd be prudent to bring along a decent camera. But...tromping through the rainforest for five days is unlikely to be good for my D80. I'll be hiking through rivers and being wet most of the time, and it seems like it would be a good idea to have something that's completely weather-sealed - waterproof - to prevent lasting damage. I'd like to come up with a decent solution for a camera to bring, and as I don't actually own a P&S, now might be a good time to get one. I'm looking to spend not much more than $250 on this particular trip (camera-wise). What's the best solution? Ought I get a housing for the D80, something that'll allow me to bring it without fear of damaging it? Or is there a good P&S digital that will suit my needs? If I was going to get the P&S, I'd like it (but not require it) to be able to shoot RAW, use SD/SDHC cards, be weather-sealed or waterproof, and have decent image quality. What do you think?