HTML Scraping??

[mustafa]

anyone know some good reliable html scraping (with python) tutorials.
i have looked around and found a few.
one uses urllib2 and beautifull soap modules for scraping and parsing
http://www.dalkescientific.com/writings/diary/archive/2005/04/21/screen_scraping.html

and the other uyses mechanize, clientcookie  ,clientform.
http://sig.levillage.org/?p=588

which one should i go with.
i am looking for and html scraping solution
that works with the registrar of a college and return stuff like course 
dtails.