First of all, I know all of the arguments for keeping Exchange. To avoid that conversation, just know that we are replacing a 2003 Small Business Server with Server 2008, and do not want to also purchase exchange for it. (There are only 5 email addresses within the company, and they dont' use most of the 'nice' things about exchange).
My question is the most efficient path to get the Exchange mailboxes still available (PST Files?) so we can go to just retreiving the POP 3 mail from the server. After making the files available, I realize I'll have to change the MX records to my ISP's address, and the add an account on the clients to connect.
Once I get that done, how should I 'remove' Exchange server? I have both the Server 2008 and the 2003 SMS in the same domain right now (which according to what I've read will work about a week before SBS starts complaining), so I want to make sure that I get exchange removed from the active directory or any other place it might hide.
A little knowledge is a dangerous thing. Can someone walk me through the steps/pitfalls?