I don’t know how I missed this story that Lego has a Lego Architecture division and will be creating sets based on Frank Lloyd Wright structures. Coming in August is Fallingwater—perhaps the most spectacular home in the world.
The sets are smaller, but very inexpensive ($20 – $40 range)—especially when compared to their other products (Taj Mahal is $300!). Currently, they're selling a tiny Empire State Building, but will be adding more soon. Most can be ordered at Brickstructures.com.