I put all my users in a CSV file, opened it in Access and then made a quick report to spit them out. I have a txt file with the following lines:
Then I just feed to to zmprov with "zmprov < userlist.txt"
password displayName 'Firstname Lastname' givenName 'Firstname' sn 'Lastname'
Mail | Dell 2950III | 2x Quad Core 5420 | 8gb RAM | 6x 146gb SAS RAID 0+1 | Red Hat 5.3 | Zimbra 6.0.10 Network Edition
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