READ THE DESCRIPTION BEFORE BEGGING FOR A DOWNLOAD. SERIOUSLY. Built this using hacked material on my SMP server. Every lever in the house triggered pistons, and I would estimate that there are a few hundred pistons in the house. If there is enough demand for a tutorial, I can do one. I should mention that all of the concepts in this video besides the lighting systems were *borrowed* from other users.
EDIT: There is no save of the world. The server that it was built on is totally gone and wiped. No copy of the house exists.
EDIT2: There were mods for this server when it ran, both fire and creepers did absolutely nothing. Stop trying to inform me that fire burns things, I know it does.