Yes, the Samba Winbind to Active Directory integration document I said I would post a year ago is finally here.
Download it at:
ftp://blog.ntpower.com/Unix_Linux_Winbind_AD_Integration_v1.3.zip .
If you try out the RID mappings/samba Active Directory schema extensions, let me know how they work (ned@ntpower.com).
More posting goodness later.