I have been getting a lot of inquiries about how I took this shot, so I thought I'd share.
Here's the setup. I used my on camera SB900, and used a slaved strobe on the left through a light box. A simple reflector on the right provided just enough on the side to give me good even illumination. Don't underestimate the power of reflectors...they're cheap, and you can use just about anything sturdy and white to do the job (cardboard, posterboard, or a hanging sheet.
The whole timing of the shot is another issue. Thanks for looking.