I sucessfully got moodle up and running today with Novell Usernames and LDAP.
We run Novell Netware 6 SP2 on our student server, so LDAP is basically enabled straight out of the box. It was only a matter of telling moodle where the LDAP server is, what contexts the users exist in and giving moodle access to an LDAP user. Firstly, I tested it out with the admin account, but since I've created another account "moodle", with rights for LDAP.
I've never had much experience with LDAP, but found that it was quite easy to set up. Now that its working, I will be able to tell students to give it a test.
Brendan