mail/addressbook conversion from Windows

[Jon Neher]

Hello,

We are in the process of converting a small office (30 desktops)
from a Windows environment to Fedora Core 1.  We need to
convert the user's mail files (as well as addressbooks)
from (mostly) Outlook Express 6
into some mail client on Fedora.  The default Evolution mail
client seems to only understand how to import Outlook Express 4
files.  Does anyone have any suggestions on how to accomplish this?
Is there another mail client that is more flexible?

thanks,

Jon