First, thanks for the help.

Recently upgraded from point and shoot digital to D20. Have 18 - 55 IS and 75 - 300 IS USM lenses.

Taking a trip to Grand Canyon, Zion, Antelope Canyon and Sedona (daylight hot air balloon ride over red rock country) and want to program camera to fully capture the reds and browns in the landscapes out there.

Need suggestions for color temp and for paramater settings so that I can customize a program instead of using landscape presets.

I plan on using a circular polarizer to cut glare. Would a lens hood be recommended? Any other suggestions are welcome.

Will also be visitng Alaska later in year. Same questions for program for that trip. Colors are a lot more green, some water, some ice at glaciers. Can have lots of gey skies there in August.

Thanks again.