I'm after a complete package which offers anti-virus and firewall protection which must offer the following:

Complete Motoring Agent
A GUI on the master server
Must use low resources - during idle
Firewall + Anti-Virus

I have seen two company's that i like, one is Sophos enterprise and the otherone is Vipre Enterprise, has anyone used these before?

or would you recommend anything else?

Kind Regards,