#1: Read about it: http://www.microsoft.com/technet/treeview/default.asp?url=/technet/prodtechnol/windowsserver2003/deploy/depopt/scenep2.asp

#2: Talk about it with Microsoft's Exchange IT gurus (Dec 3, 1-2PM Pacific Time): http://www.microsoft.com/technet/treeview/default.asp?url=/technet/itcommunity/chats/Default.asp (direct link to chatroom: http://communities2.microsoft.com/home/chatroom.aspx?siteid=34000015)