On the left, I'd rather see Jim with a brush, palette & tripod easel, the easel really being a computer screen that shows the same image as the large screen (or a magnified region thereof), but partly in wireframe mode. The large screen would not have to be so dominant then, and perhaps not tilted so much (if at all).
Very rough and incomplete sketch:
http://img233.imageshack.us/img233/4626/newsite3.png
Just my two (Euro) cents.
Christof