If you have Microsoft Small Buiness Server, then search inside it for the POP3 connector
otherwise u have to use commertial applications
Have a look here for a solution: http://www.slipstick.com/exs/popconnect.htm
However, you should probably consider handling your own mail with the server from start to finish. Exchange 2000 and beyond do not support POP3 natively and you need a third party add-in to do it for you.
Thank you all.I am first going to try and host everything from start to finish. If that becomes too cumbersome I will try the third party apps.