This is how I set up the lighting for my "Guitarist" shot over in critique. (view it here)
One Alien Bee 800 with my 54 cent snoot (black poster board) pointed at the subject sitting in the chair. Kept moving the light until I had the profile I wanted, slightly rotated the guitar to get the light on the features I wanted, and fired off a few frames.
No background was used, the flash was so much brighter than the ambient light that none of it showed in the exposure. The shot was taken at ISO 100, 1/250, f/22.
The snoot wasn't to guide the light, it was to keep it from spilling all through the room and filling in shadows. I also had a black reflector ready behind the subject's head to catch any potential spill, but it ended up not being necessary.
This required very little space and no more than one strobe, a stand and a piece of poster board.
Guitarist