Thanks all for the quick info, that combined with a bit more reading has convinced us that what we will do is setup the server as a Samba server specifically to become the PDC in our domain and then retire the exisiting one - which is slow and running out of space. We are pretty sure that we don't actually need everything that AD provides. This would also mean I can forget about tracking access licences.
-- Simon Bryan IT Manager OLMC Parramatta -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
