I am going to be picking up my new 27" iMac at the store tomorrow. For the past 4 years I have been using a 24" Dell at 1920x1200. Since the 27" iMac is 2560x1140, do most people run it at native or something lower? I am looking forward to the increased screen size so I can have more rows/columns viewable, but not sure I want them any smaller. I sit about 24-30" away from the screen. How would the 27" look at something lower?