Of course our office is not this big but what I do like is the built-ins and furniture scattered throughout.
[RS: Out of all of these photos--literally, all of them--this is the only one that I truly love. However, I also understand that what I love about it is a lot of stuff that has absolutely no application for us (all of this space, room to put in a lot of really lovely and unique feeling furniture pieces, then those spacious and elegants "stacks" framed in glass. If I were working from home many hours a day, this would be pretty close to my dream office design, but I'm not sure how much of this can be translated into the space we have.
I do love--and think we should--focus on finding a dream desk and maybe also some credenza/storage pieces and seating, so the room is not all shelves and nothing but. I do love the contraast between the dark floors, which we'll have, the dark furniture and then the white shelves. I can see doing that in our place, too. We just won't have the ability to open it up this nicely and do the cool stacks...]