Khoi Vinh has a great little piece on Adobe's CS3 suite here.
One quibble: I have to disagree with Mr. Vinh regarding print dialog boxes in CS3. I find them very intuitive and handy, especially compared to the print dialog boxes on competing products (QuarkXpress, I'm looking at you, you slow, bloated, ugly, lo-res, counterintuitive piece of shit).
Aside from that, I find this article to be spot-on: CS3 is leaps and bounds ahead of its predecessor in terms of interface cohesiveness, stability, and feature improvement. I can't bloody wait until we upgrade at the office. . . .