CS3 sucks. Ok, i would marry the refine edge tool, but...
The entire of the 'left hand' panes, such as history, navigation, swatches, histogram, layers, all have this stupid compulsion to stick to each other. What if i want my layers palette in plain view? What if i find it highly irritating that all my little boxes clump together like overcooked rice?
Cs2 leaves that crap out. Minimalist, functional, and that's it. Oh and balls to all that 3D crap. If you knew anything you'd get illustrator to do that