i dont think you can use samba for the outlook express data as far as i know outlook express does not have the ability to store its data on a remote system.
as far as the data files, yes that is all on how you configure you windows systems. keeping in mind you are NOT in a native win2k/win2k3 server domain environment. so your desktops will NOT be "roaming" if that is what you are looking for.
only the stored data.
in short user1 will have a samba share that he can access, if the network share is mapped correctly and "saved". you WILL have to TOUCH every system and configure each system for each user 1 time. after that it should not be an issue.
that or create a batch script that will run for each user then you can just use http://windowsitpro.com/article/arti...indows-xp.html
netmeeting to transfer the file to each system and go from there.