There is a web seminar on visualization in IDL tomorrow:

This free web seminar will be presented by Dr. Mark Piper and will provide details about the visualization capabilities of IDL and practical examples of how to use IDL for visualizing 1, 2, and 3D data sets as well as the different types of visualization capabilities. The web cast will run approximately 45 minutes with time for Q&A at the end. It’s tomorrow 11:00 a.m. to noon (MST), so sign up soon.