One of the newbies was Zack Arias, the (multiple) subject of this shot. If you're not familiar with his work, take a look at his website, and be sure to check out a video I linked in a previous post – Transformed – it's a great piece of work. You might also want to check out his OneLight DVD. I'm just working my way through it at the moment and would definitely recommend it if you need any help/inspiration on how to use a single strobe to light your subjects.
As for this image: I didn't set out to produce a composite portrait, but was shooting Zack in the Souk as he was filming with his Flip Mino. I didn't think that any of them would be especially great (I was snapping rather than thinking about what I was doing), but when I looked through them I realised that while none of the individual shots were particularly good, they might work well as a set. Part of the reason I was prompted to think of a composite image was because Zack shot the group portrait at GPP this year using a single strobe to light 29 people dotted around a dark auditorium - one by one. If you're interested, the final image and Zack's description of the process are here: