I chopped the s--- outa a kensington usb adapter and soldered some wire leads on. Then I cut a bezel out of a black plastic parts bin divider with a dremel, step bit, and utility knife.
Bigger pics at the flickr links if you wanna check 'em.

http://www.flickr.com/photos/29622478@N03/2770238247/

http://www.flickr.com/photos/29622478@N03/2771168466/

http://www.flickr.com/photos/29622478@N03/2771192222/