I had been to Adobe Photoshop lightroom workshop today. I was pretty impressed with kind of post processing functions this software provides. I realized , this might be the tool I was looking for. Not as heavy as Photoshop and definetly not as dumb as mspaint. Got pretty impressing functions like varying exposure, hue, luminence and whole lot more. Other thing which differentiates light room with other softwares is its catalogue facility where in click of a button you can find your images. And BTW, the most rocking feature is it will never modifies your original copy. It always maintins the changes as list of commands in the catalogue. Below is couple of images, one RAW image taken from camera and other one after processing in Light room.

And the trainer finally said, all that we saw today was just a brief of Lightroom. Well, looks like most of my next few days will be spent in exploring this one nice software.
If any one is interested in attending this work shop, follow the below link
http://www.flickr.com/groups/bws/discuss/72157616528684229/