(also posted this on MathGroup)
I’ve come across a resource on ‘Independent Component Analysis’ that you may find useful.
The online journal ‘Tutorials in Quantitative Methods for Psychology’, volume 6-1, includes the article ‘An Introduction to Independent Component Analysis: InfoMax and FastICA algorithms’, by Dominic Langlois, Sylvain Chartier, and Dominique Gosselin, as well as Mathematica programs implementing these algorithms.
Access the paper and programs via the following links (for some reason links on the webpage are buggy at the moment):
(+1 for including ICA in version 8---agree??)