Hey, I have been running Norton Corperate edition on my network of about 40 machines. I have found it to run very well. Some of the features that it has are over kill for a network of that size, but it does a good job automating everything, and gives me one place to check for errors. I also like it becuase it gives me the ability to lock out people. The clients cant make and changes only the server can. All of the rules on how to deal with a virus are set by the server all the user gets is a window that says it found one, and you can even turn that off I believe. Currently I am running it on my file server, but you could also run in on a seperate server, and have it manage the file server from there. I hope that was helpfull