I used PS6 for ages and there were a number of things about the interface that always irritated me. Then I got PS Elements 3 with my Wacom tablet. What a pleasant surprise!  Sure, it's missing some pretty major functionality (like alpha channels, CMYK support, the ability to make custom brushes, history brushes etc, etc) but if you don't need the missing tools it's a whole lot nicer to use than PS. 

To me it's almost like Elements is an 'admission of guilt' that Photoshop's interface sucked and so they overhauled it in Elements (where they could make changes without upsetting old users). They even fixed that maddening thing where you undo your first brushstroke and find yourself back on the wrong layer.

I'm now trying the demo of CS2 and I'm very disappointed to see that it's every bit as irritating as PS6, and a big step backwards from Elements. I was hoping for a whole lot more   :-(