[Samba] "Best" configuration?

[jonlists]

Have a site in which we currently have samba deployed, but I do not like 
the existing configuration..... 

What I'd like to do is deploy it in such a manner that the environment can 
be made redundant, not necessarily "clustered" - but in the case of a 
server crash, another server could easily be brought up to replace the 
main server. 

What I'm looking at is how to store user information for redundancy - with 
regards to samba, which is better for this situation - interfacing samba 
to OpenLDAP or NIS/yellow pages??

Thanks for any comments....

Jon Johnston
Creative Business Solutions
http://www.cbsol.com
952-544-1108