[Samba] About Samba 3.0 goals : Am I Right or Not?

[Kalkoul Morad]

Hi,

Will following handling with the 3.0 be possible. a park with machines under
XP, a  samba 3.0 server  on linux, and a 2000 server : a 2000 server in
single mode wich lodge the Active Directory. A samba server 3.0 which will
be a PDC and could write in the Active Directory of the 2000 server . XP
machine Clients which would join the Samba Domain would be create in the
Active Directory via Samba Server?
Am I right or Not? 
Mo