I get this RENDEROSITY newsletter (back when I used to dabble in 3D) and the most recent offering gave me a little "ah ha" moment of sorts.
They showed off some ok looking building packages and I thought that they might be of interest for background building. Basically taking them and using them for Photoshopped scene backgrounds. They would allow for not only proper image sizes, but would allow the user to get the right angles to match their real world models and streets.
Take a look.