Nice Kevin! Will you share a parts list? How did you attach the lamp to the top of the extension pole?
Here's a bit of a writeup with a few more pictures. http://mandamus.typepad.com/onefullplate/2008/11/back.html
Parts list:
One extendable paint roller handle
One tractor light
A bunch of wire, nuts and bolts, etc from the bucket under my workbench.
I didn't do a full writeup with five-part harmony and feeling, but the photos will show a bit.
The paint roller handle had a pot metal threaded portion at the top that I drilled through to bolt the tractor light up. I used a piece of all-thread, but a longish bolt would work also. I wound a bunch of wire around a tube and heated it up with a heat gun to make my own coiled wire- that's inside the roller handle so it can extend and retract without wires hanging around the outside.