Hey everyone, I'm about to purchase the new Intuos 4. I currently use a graphire 4 on my mbp for design work and general "mousing" with the pen. The size of that seems perfect for the 15" mbp screen. The intuos would be for my 24" imac, and I don't know whether to go with the medium (8.8x5.5) or large (12.8x8 active area), because don't know which would have the best "feel" for a 24" screen, if the medium would feel too cramped or the large too big, no idea. Thanks!