Well I finally am upgraded to Adobe Design Premium CS3. After having tried out the Photoshop CS3 Beta earlier this year I was truly lookign forward to the new interface. I found the collapsing panels extremely convienent. I also liked the addition of the live filters. I have been working in a non-destructive mode for about two years now (delete is not in my dictionary anymore) and adding these filters in will only make this easier.
I also really fell in love with the new Adobe Bridge, especially the fact that you can view Flash files inside of it finally. I felt that was something Bridge should have been able to do from the get go even though Macromedia was the competition. I have not spent much time in Illustrator, Flash or Dreamweaver yet, but the consistent interface I am really excited about.