I just built my light box and took some trial photos. Nothing but a couple of $10 desk lamps from Target, my Kodak point-and-shoot, and the "I'm Feeling Lucky" button in the Picasa photo editor.
I don't have any of the new photos added to my listings yet, but I added one as my profile pic so you can see what it looks like. I also added a comparison on my Google+ page, if you'd like a closer look.
I'm pretty pleased with the results, for ~$24, 20 minutes worth of work, and very little photography experience. :)
https://plus.google.com/117883780370862686277/posts(edited to add that the $24 counts the two $10 desk lamps :P)