[Samba] Having it both ways with winbind

[Braden Bill]

We already have a large complement of Unix users that are also Windows
users but we also have non-unix users that need access to some samba
shares.  How can I setup samba so that Users who already have a Unix
account will get that account and home directory when they connect
through samba but valid domain users that do not already have a Unix
account will authenticate through winbind and get the winbind generated
UID, GID and home directory?

Thanks.

--Bill