The house I bought is a split entry house. The downstairs at one time had a garage. That was converted into a huge family room (read: 700-800 sq. ft.). I would like to separate this room into an office and a rec room. Putting in a wall would be the first option, but I'm sure that could cost $10K easily. So I'm thinking about using something else to separate the spaces... like some ceiling-to-floor bookcases or something. It wouldn't close the office space completely, but that's not a big deal. Has anyone ever heard of someone doing this? Or am I totally insane?