Here is my second entry shot of the low light ( night life shot ). I am still learning this kind of shots, I make many mistake but sometimes I am lucky. 

To Shane " this shot was made on : Shutter speed: 1 sec, ( shutter prior ), Apeture: F/4.5, ISO: 100, Focal lght: 31 mm

Hope this data helps a bit, but myself still in a learning stage with this. Try to go closer to the subject ( moving cars). Try freeway overpass,looking down on passing cars and tracks, intersections ( never mind if drivers looking at you what you doing )

seeya  Tunde