Migrating E-Mail to New Workstations

I am in the process of migrating my users to new workstations and they wish to keep their e-mail folders, all the e-mail they currently have stored on the workstations, and their personal address books. Obviously, the mailbox.PAB file on each machine will give me the address books and
the mailbox.pst file should give me the saved e-mail and e-mail folder structure. Am I correct in assuming this?? I also have a few people with several megs of e-mail and am thinking of hooking up an external zip drive to a machine...setting it up so it can be accessed and info saved to it from each machine as I get the info off it...Any comments.????

LS