dynamic colorbar

One of my favorite aspects of matplotlib is how easy it is to make dynamic plots. When doing this with 2D renderings using pcolor or imshow, is there an easy way to also dynamically update the colorbar?

Thanks,
Rodrigo

Hi,

I have looked had a look around but I have been unable to find out how to
change the size (and orientation) of graphs when I save them as eps or png
files - using savefig - any help or directions to help would be greatly
appreciated.

What I want to do is save a graph that is a full page size in landscape
orientation.

Chris