I went out a few nights back at around 2am to experiment with my camera a bit. The sky was a bit odd that night, a lot of low clouds moving pretty quickly. I was at my girlfriend's house - the street lights in her neighborhood are orangy-white, not bright white. Here is one of the shots I got. It's hard because it's pitch black in the viewfinder, all focusing is obviously manual. The only thing I did in PS was nudge the black forward a little, and resize. f/4, around a 5 second shutter, ISO 400.