i'm planning on buying an imac in the near future...finally making the switch from pc. fairly confident that I settled on the 27" i7 with 8mb of RAM. While I'm certain I'm going to purchase one, I've thought about holding out for a few months in the event that the new imacs are upgraded, even though that time frame is somewhat of an unknown. I'd like to pull the trigger when it's brand spanking new. Thanks for any insight or recommendations....