SB600 placed behind the bottle in a soft-box (sort of, see next pic for the set-up). Had a couple of paper sheets placed between the bottle and my SB600 to diffuse the light. Guess it works as a gobo (go-between) and I added more to diffuse the light a little better.
I absolutely love the way you can play with light. Have my SB600 for a week now and I love it already.
Learn how to light at Strobist. < this is an excellent source for information about lighting.
Now I did photoshop a little to iron out blotches and stuff. Also the background wasn't as smooth. I do some retouching assignments for a publishing firm so I can't help myself there.