http://www.cgshaders.org/ ~ Lots of nice shaders here, and a tool that converts them to the .fx format (I think)

However I have a request for anyone who knows how to do this stuff. It there a way to make 2 effects:
One: make something like the wheat found here:

move with a wind angle (0-360) slightly?

Two: when an entity with a certain value in one of it's skills hits one of the wheat sprites, it'll bend over away from the character until the character passes?

Just random thoughts, but I figure if I'm asking them, someone else must be wondering as well.