I only have a small point and shoot Canon SD1400 IS. For me, learning to work with Photoshop or other programs like Photomatrix Pro – I think are essential for fixing my shots. Until I can afford a better camera that is. The two pics below (slideshow view) are of 1: the original shot and 2: tweaked just a bit in Photoshop.
I’m attending a weekend workshop in March for beginning photographers so that will help a lot. I’m hungry to learn more. If you know of online tutorials working with photos in Photoshop (especially nature shots) let me know!