Being able to do this isn't the impressive bit. Being able to do it again when I say "Sorry, I missed that, could you repeat?" is the impressive bit. Strobist info: three lights. One gelled purple with a Stofen-style diffuser on the floor, pointed at the wall. One umbrella to camera right, and another to camera left set much lower (compare the lighting on either side of the arm for the ratio). The umbrellas were goboed to prevent spill into the camera or on the backdrop.
Canon EOS 350D DIGITAL, 26.0 mm, f/4, 1/125s, ISO 200.