I downloaded Picasa a few weeks ago and continue to be blown away by this free software! I'm managing over 10,000 family photos with no effort at all.
- it monitors whatever folders you want it to for new images
- it's free
- it has the absolute coolest timeline feature thingy ma-bob I've ever seen!
Picasa: Automated Digital Photo Organizer software, instant photo albums, sharing & printing: Download