Thanks Annie G. for passing on this incredible puzzle table photo (below).
Can't say I have anything that fancy. I like to use an ordinary small square table in the kitchen for puzzling, but then we have a "glass top" that we can put on top of a in-the-works-puzzle to serve lunch, and then we can just take the glass top off and resume puzzling again. Of course just after you put the glass top on is when one finds that piece that's been eluding you! :).