I have a 4x5 Graphire3 tablet, but I am looking to upgrade. I want to move to the Intuos series and be at least 6x8. I have found a couple used 6x8 Intuos tablets in my price range, but I am unsure which would be better (2 or 3). Correct me if I am wrong, but the shortcut 'keys' on the Intuos2 are activated by clicking them with the pen/mouse compared to the Intuos3's being actual buttons? I am just looking for opinions on both from people who have used them. Thanks in advance.