Onyx, you're not thinking big enough. I'm having three floors of floor-to-ceiling bookcases with galleried balconies, so you just get the whole "huge room of books" vibe when you walk in. (It's going to be a cross between the libraries in Disney's Beauty and the Beast and My Fair Lady).

I do love my books though and want to give them a proper home and their own room. They mostly share a room with DS now but as they grow that just won't stay a solution.