Google has released Picasa 3 to coincide with my birthday. Everybody with a PC should have this program. It offers so much control of the look and managing of your pictures.
This latest beta program has improved the tagging, collage and editing features while adding both a movie maker program and a picture preview program. They still have some room for improvement but overall this little program is simply a 'must-have'. I don't know of anything short of Apple's iPhoto which comes close to offering all these features in such an easy to use format.
But, unlike Apple, this program is free (of course) and it doesn't force you to get a Mac.
Download it here.