nltk vs Bayesian Classifier
I got this list from the mailing list of nltk, which turns out to be some nice stuff.
A list of material concerning on nltk and the Bayesian classifier:
nltk team @ google
Lectures on AI by the India Institute of Technology (the last two are about nlp)
3) Some Useful links
More links (self-updating delicious stream, some interesting stuff)
Math around Bayes theorem is also covered by