Rights Issue

I would just create a home folder for each person folder for each person. Make sure that the partition that has the share has is ntfs then you can put qoatas on them to.

NOTE: To specify a network path for the home directory, you must first create the network share and set permissions that allow the user access. You can do this with Shared Folders in Computer Management on the server computer.

To assign a home directory to a domain user:
Click Start, point to Programs, point to Administrative Tools, and then click Active Directory Users and Computers.
In the Details pane, right-click the applicable user account, and then click Properties.
In the Properties dialog box, click the Profile tab.
Under Home folder, type the directory information

don't give them the same directory. Give one something like this. //mappedriveletter/"Username"

If users have the right to 'read' the files and folders, then they will have the ability to copy the entire folder and the files to another location. Therefore, if they have the abiltiy to copy the files, you will not be able to control what happens after that point.
From my experience, if any user has the permissions to 'read' a file or folder, then they now have the ability to copy. This is the case, no matter what other permissions or rights are assigned.
There may be some third party answer, but I currently am not aware of one.

Sorry.

Michael R.