The Log Cabin
The figure I believe are from Monday Knight Productions Desperado Figures line and are 25mm. Sure some of the parts of the building are a wee bit out of scale (it is a birdhouse after all) but each building was $9.99 (assembled) and with a quick paint job will fill the bill quite nicely (IMHO).
Also, if you have not checked out "Miniature Wargames" magazine, please do so. Great articles & photos every issue.