I made up a whole bunch of top down houses for my own use and turned em into brushes, so far I have 19 different house shapes (squares, circles, rectangles, L-shaped, H-shaped, U-shaped, etc). I recommend that everyone make their own since scale is important. The first set is nothing more than black shapes on a clear background. These can then be used with any sort of layer style you choose, esp inner bevels and a thatching pattern overlay. I made a set of pre-thatched and beveled roofs but when PS turns em into brushes it makes em grayscale so the houses end up with semi-transparent bits, which is really annoying and requires extra steps to remove the transparency. I also made a set of grayscale ones for use in 3d rendering which hasn't turned out so well. The best way to do them is to use the GIMP since it supports colored images as brush shapes and you can also set up an image hose (or tube or pipe or whatever they're called) to paint a variety in succession, one of the guys here has a post on how to create one (search for animated brush). I also second the motion to browse the Dunjinni forums as there are hundreds over there, even modular ones where you can piece different bits together. All in all, though, it's pretty easy to come up with your own and only takes an hour or so at most, unless yer like me (closet architect) and start making castles, manor houses, temples etc. The bottom line is: in PS just use black shapes and in GIMP use the hose. Maybe I should do up a tut.