Thanks very much for the replies. I think I will opt for Zone Alarm. Will this interfere with Norton Antivirus in any way? Some very bad reviews of Norton Internet Security out there on the web. Only good for installs on new build/rebuild machines.
I think I will eventually upgrade to a hardware firewall/router as I can see myself buying a new PC for my other half fairly soon.
Once more PPRuNers come up trumps.
Thanks
DeepC