[KLUG Members] samba user permissions

[John Pesce]

Hello,

I'm new to Samba configuration. I've read the "Samba by example" docs on
the Samba.org site and I read Michael Lueck's KLUG presentation. I have
Samba setup as a domain server for a LAN of ~30 users. I setup linux
groups for domadmins and domusers and have ~40 machines on the network.
I even managed to get shares drives mounted.
I'm still confused on some things.

1) I see that all the users have roaming profiles. I'm not sure if this
is a good thing as it takes time and leaves copies of files on all the
workstations that never seem to go away until the drives fills up and I
have to delete them. 
What would happen if I disabled roaming profiles? Would people loose the
ability to save things like their AIM settings and website favorites?

2) We have a requirements capture program, no names, that uses ODBC to
access databases containing the data. My problem is that this
application creates registry entries for these ODBC connections for each
project database that a user wants to create or access.
Domain users apparently don't have local access to create/modify
registry entries so the program fails to open files unless an admin
first runs it to create or establish access to the database file on that
machine.
This is a pain. 
Is there some way Samba can grant some users local access to modify
registry entries within this app without making those users admins?