Here is a link to some great lampworking tutorials: Evan and Dawn's Tutorials
I recommend "The $5.00 Photo Studio." Though I don't use Evan's exact type of photo setup, it's a great tutorial for anyone wanting to set up something simple and inexpensive. I learned a lot during the second part of the tutorial, where Evan walks you through editing a photo in Photoshop.
Sarah Hornik's Photoshop tutorial, combined with Evan's, will teach you almost everything you would need to know about photographing and Photoshopping your bead pictures.
If you want a more detailed description of how to set up a small photo studio, complete with diagrams and discussions about lighting and background set-ups, visit this website: Building an in-house photo studio.
Here's a photo of a bead I've just put up on Etsy: