So i'm thinking of finally getting a mac at home (I use one at work) but my desk kinda sucks. It's nice and all but there's no way to have more than a single monitor. The 21" widescreen I had to measure to make sure it fits. So out of curiosity I took a piece of cardboard and got the dimensions for the 20" imac and got it to the proper size, guessed at the internal dimensions since they just give external ones, and propped it up where I planned to put it--I was going to use my current monitor as my main screen since it is slightly large than the imac. Well, see for yourself... Yeah that's pretty much blocking the middle third of the desk. I'm still probably going to do it. Just going to wait for the possible upgrades that are rumored before the holidays.