[Samba] Winbind - how to map ADS group to Unix group

[Miles, Noal]

I am running 3.0.10-1.4E on RHEL4.  The machine is a ADS member server. I
would like to statically map the ADS group "Domain Admins" to the built in
"wheel" group so all members of "Domain Admins" are in the "wheel" group.  I
have looked at the username map option, but I don't want a group of users
mapped to a UID (this would defeat what I am trying to do in using the wheel
group).

I suppose it would be possible to write a script that would enum the ADS
"Domain Admins" group and add the users to the "wheel" group every X
minutes/hours....

Am I missing something?  Any thoughts on the best way to do this?

Thanks,
Noal