Googling for some bead stores returns a few places with many styles of bead photos. Looks like some of these on plain black backgrounds aren't very interesting but some of the tightly cropped, and organized thumbnail pictures of beads are pretty good.
Example photo of the tightly cropped:
http://www.beadsmosaic.com/images/beads_collage.jpg
Example Bead Stores Online:
Good luck. Post what you come up with!