If you are running Gmail (or Google Apps for your Gmail), Google does
virus scanning automatically, for free. In which case a standard
anti-virus programme (that scans email) is irrelevant.

I use Little Snitch. In their words:
"A firewall protects your computer against unwanted guests from the
Internet. But who protects your private data from being sent out?
Little Snitch does!"

For any request to send data from your computer, you get an alert. You
can approve or deny it, temporarily or permanently. It is very simple
and convenient.
This takes care of many of the theoretical problems that might arise
if your computer was compromised. In practice, it is a good way of
knowing what programs 'phone home'.

Glenn.

2009/3/2 Glenn Walker <wal...@amnet.net.au>:
> Hi All do i need a antivirus for mac.
>
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