I know photoshop really well but not from the interface design perspective (Fine Arts major in college concentrating on Photography so I know Camera RAW and the

I know photoshop really well but not from the interface design perspective (Fine Arts major in college concentrating on Photography so I know Camera RAW and the associated photo related tools really well). It always amazes me how many features it has and how useable it is with all of those features (I have been using it since 5.5 which has, as far as I can recall, has a very similar interface for a number of the primary photo type tools -curves, layers, etc.)