We will soon be purchasing a new server to host our Exchange servers, moving up from Exchange 5.5 to 2003 at the same time. What are some good more-than-minimum specs I should go for in a server that will be dedicated to Exchange and our DNS controller? And what is an effective spam filtering product that has a quick learning curve and is fairly maintenance-free? I am considering the Symantec products right now.....we have around 30 mailboxes, and would like to handle it on the server, since desktop-based filters are not working for us. Thanks!