Don't get mad for me posting this...
I think shaders is an art-side of programming where the programmer needs to understand a lot of rendering-concepts that are also used by an concept and illustration-arting. So that's why I'm posting this and, ofcourse, I wanted to show off what we did in class-time during seminar.
Seminar IN-CLASS result footage
Is all programmed in XNA 3.0 and shader-code in HLSL
For info read discription on the YouTube page ;)