...Even so, in the rare event you did get a virus, with a good security policy it won't be able to do anything anyway.
I am agree on 100%, for last two years using WS2K8 x64 Standart and this new one - R2 ( from 2-3 months)with their security policy i have no significant virus issues. Some little adware and malware problems but nothing that can block system at all - i mean is treatable.
Just for example - i'm not using antivirus software because by my opinion they are too angry and hungry for system resources- i mean memory and cpu time, sometimes with some of them even hdd shows enormous activity.For the purpose of antivirus cleaning i'm using online check or sometimes make installation for 1-2 hours - just for checking...
Most important regarding security is tight browser i think.