Don't forget the sketch designer, the grouping tool, new figures, (and some bugs, but I won't mention them). The differences between 3 and 4 are like day and night. The extra maping modes alone were worth the price of the upgrade, not to mention all of the other stuff. Just my 2 cents... (maybe we should change this to 2 bucks.... what can you get for 2 cents anymore?) -Trav