I have to take my 20' G5 iMac to the genius bar today because the logic board failed the other day. Of course with my luck, the serial # does fall within the range of a free replacement extension program.... but the 3 years is up. Anyways, I'm going to bring it into the genius bar anyways and see what they say, but I don't really want to haul a huge 20' heavy iMac through the streets of downtown SF. I know for sure that I don't have the original box, but how big would a box need to be to carry one? I know the dimensions of the shipping is 27.4x25.7x10, but thats with keyboard, mouse, foam, etc. Does anybody have any suggestions on how to package an iMac?