I have a 24 inch iMac at the moment. I love the form factor, but it's time to update. Unfortunately if I bought the 27 inch iMac a would have to buy new furniture, which I don't really want to do, but will if necessary. I am however worried about buying a 21 inch, as even though it will be significantly better spec wise, it will feel like a downgrade because of the screen real estate. So what I'd like to know from anyone who has moved from the 24 to the 21 inch iMac, did you miss the extra space? Also what do you all think that I should do? Is the 27 inch worth buying new furniture for?