A friend of mine brought to my attention this great software tool from Adobe. There is a new version 2 on development and I've tried both 1.3 and 2.0 beta.
One of the reasons I've bought a Digital SLR camera was to be able to shot in RAW mode. Doing so gives you more choice in terms of development options than shooting JPEG.
Lightroom software allows you to give a similar treatment to your photos, no matter your shoot RAW or JPEG. The software main aim is to help you make your good photos great.
You may wonder why don't you just use Photoshop or GIMP instead. These other tools are just not designed to help you do that easily. However Lightroom has a simple but yet very powerful interface with an astonishing fast calculation that make it very pleasant to use. You can always easily compare the "Before" and "After" pictures.
You can get a trial version from Adobe website so you may try by yourself.