Thanks.
I used my Canon 30D on a $30 Targus tripod, Tamron 17-50 @ 17, f/9, ten-second exposure, ISO200. Camera was set to lock up the mirror before the shot and I used a cable release.
camd64: wild. I've been in buildings that have been struck, and I was sitting in my car near a light post that got struck...Definitely loud. :)