samba - Mar 2005 - looking for a good tutorial on samba 3 and Active directory

Hi there! 
I have looked around a bit and found all sorts of documents Regarding samba 3
and ldap, samba and authentication against Windows AD.
It seems a bit confusing, I found many documents from many dates.
I am looking for a good one that can help me integrate the authentication of the
linux machines on Microsoft AD to set up a couple of file and ssh servers.
Any help would be appretiated.

Cheers

	Jo?o Carneiro