Lightroom 3.0 is shipping now and it's a separate application.


Photoshop CS5 is a deep, professional image-editing program that can do practically anything to an image - anything you can think of.


There's also Photoshop Elements which is basically a stripped-down version of Photoshop - at about 1/5 the price.


If I were you I'd download a trial version from Adobe and see if you like it. I think it's 30 days. Try it first, make sure your laptop can handle the processing (max out the RAM first if you can) - it gets pretty intensive especially with large files, files with many layers or several images open at once.


Personally I love it. My background is in graphic arts so I knew quite a bit about masking, compositing, etc. already. If you're coming into it "cold" you'll have a steep learning curve. But if you enjoy working with your images you won't regret learning Photoshop.