[Sussex] firewalling/AV and kubuntu

[John D.]

Hi list,

My aunt (in her very late 70's) now has a dual boot winXP/kubuntu system, 
installed by yours truly, after she got virus'd (might have been some other 
similar problem - I don't know, I didn't repair/sort it).

The person who did the repair, apparently reaffirmed my suggestion that she 
might be safer using a linux system for browsing/email and just retaining the 
windows install for the digital photography stuff she does.

Her system is an AMD64 based one, which kubuntu installed on with no problems 
at all (I actually did the partitioning with Partition Magic 8 - she seemed 
happier me doing like that, as opposed to using Qparted or something 
similar).

So the only issue seems to be one of firewalling and anti-virus (yes I have 
explained that AV isn't quite as important/necessary on a linux install, but 
she's so windows oriented at the moment etc etc).

Can anyone advise me as to which firewall is likely to be the easiest/most 
straight forward to install and manage (I'm not always available to assist 
with any problems she might have)?

Also, I'm presuming that ClamAV is going to be the AV answer, as it seems to 
be pretty much the "industry standard"?

As ever, any advice and suggestions are greatfully appreciated.

regards

John D.