There is a good article regarding PS in regard to landscape stuff, its a good read and teh comments are also worthwhile reading (yes i know thats rare)

I think many people fall into a trap when talking about this subject. They assume there is a right way to process photos. There is also a general lack of understanding about how digital photography has completely changed the way we process photos. Photoshop and other photo applications are the digital darkroom.

This debate boils down to the philosophy and intent of the photographer. For a documentary photographer, except for maybe sharpening and minor tonality tweaks, processing tends to take away from the veracity of an image.

http://www.photocascadia.com/blog/ho...-zack-schnepf/