samba passwd's

[Nate Mayotte]

Is there anyway to just take a copy of the unix system 
passwd file and copy the username and password fields into 
the smbpasswd file?  I know you can get it to copy all the 
usernames and places x's in the password fields, but I was 
wondering if it could copy the password field too?  I'm 
trying to get around making it so that users that want to 
use samba have to type smbpasswd in order to login.  But , 
I think I'm pretty much stuck since samba probably uses 
different encryption than the /etc/passwd file.  Also, Is 
there any other way to reverse synchronize the two passwd 
files?  I know that if you use a pam module with NIS it 
can change them both for you when you type passwd.