I have started working in Photoshop to create a my scene although haven't got very far because of the lack of reference images so since its rather difficult to get anywhere at the moment. I've searched the internet and found some images which show exactly the type of lighting I'm after. There are also some pictures of different styles of lamp posts. I want have something to model in Maya while still working on the design of the street and since they are a necessity, it only makes sense to start the small things (such as the lamp posts) now to lighten the load of modeling later on.
I still need better images of the buildings in streets.
I took the last photo myself.
This is exactly the sort of lighting I want in my scene.