I am trying to find a solution for antivirus and antispam that works well in a Microsoft terminal server environment. We previously had McAfee, but it has proven to be a major resource hog. Any one have any good suggestions and why? We run Windows 2003 Standard on all our servers. We need to protect 5 terminal servers, a file servers, two domain controllers, a number of software software servers, and about 40 laptops and desktops.