Totally simple setup actually. Go to the Dollar store. They have a bunch of white poster board sheets for $.50 each. I bought a bunch of them and whenever I need to get a white background I just tape one up against the wall so the bottom portion curves out on to the floor. You eliminate a seam that way so the white is indefinite. Then I just use a really bright floor lamp for lighting. In addition I usually use a slower shutter speed than I would normally to over-expose the image. This helps make the white even less definite and gives the center object just a bit more depth. Having a totally kick ass camera also helps. You can use it some time if you would like.
Oh I was more impressed with the bouncing light, meaning you have something set up on the sides as well? Also white paper? :> I have some paper I photograph on but bouncing light without heavy shadow is kinna a problem.