[Samba] Multiple server theory

[Craig White]

3 computers...

- WinNT4 - presently PDC-soon BDC - some file serving - print serving -
AV server

- Linux 1 - presently joined to domain - slave DNS/LDAP - primary file
server - primary SMB HOME/PROFILES and SHARES

- Linux 2 - presently BDC-soon PDC - web & mail server - master DNS/LDAP
- DHCP server

Should I be running winbind on Linux 1?

Does Samba 3.0.0 with LDAP obviate the need to fix signorseal registry
on WinXP Prof clients? How about if I get kerberos working? 
Thanks,

Craig