My CT has a computer in his room and he found a great CD-rom called ChemLab. I haven't had the opportunity to explore it in great detail but from what I was able to look at the CD looks as if it will be useful in the classroom. It has short videos of demos, a periodic table, a Geiger counter, and much more. I delight in using CD-ROM's in my physics classroom. I, however, have learned to allow some variety of choice to fit the student's learning style and the level at which the student finds herself in the topic.
Students really benefit from the added visualization.