A felow wargamer turned me onto this site.
These things are great for mini guys who dont want to go into the expense of hand painted model buildings, or dont have the talent to build & paint them themselves. These arent free, but my bro says they are reasonably priced for what you get.
Also, once you buy it, you own it for life and can print out as many as you want.
http://davesgames.net/