Heading to Alaska at the end of the week. I've been trying to read up on how to use the new camera, (D5000) and bought a couple photog books to study up on before I leave. But I thought I'd ask for some suggestions on camera settings for taking pictures in Alaska??!! Lots of scenery pictures, glaciers, etc. I haven't had as much time before the trip to play around with settings as I had wanted - so some tips would be greatly appreciated. Thanks!