For photo editing, I use an old version of Photoshop, V.5., which I like a lot. Having read that Google makes Picasa 2 available free, I decided to try it - available here with overview, features, etc.:
www.picasa.com
It seems strong for finding and organizing photos on the hard disk, also good for slide shows, captions, creating CD's for others, making your own screensavers, etc. But unless I'm missing something, the editing features are pretty weak - overall items like rotating, color adjustment, etc. are there, but I don't see any "selection tools" for working on only a part of the image. So it seems to be a (very affordable!) option vs. the album/slide show programs, but no substitute for Photoshop/Elements, Paint Shop Pro, etc. At least from my first impression. In the PC Mag review, the editors give it 4.5 stars, but the users only 3.5.
:-D