Yeah, I figured
I already answered to your email:
1) Any computer can get viruses, including Macintosh computers.
2) Historically, there have not been enough Macs in use for the virus
writers to bother creating viruses for them. I suspect that is about to
change.
3) Nearly all viruses out there at the moment will do not harm and cause no
problems on your Mac. That does not mean you should not run an AntiVirus,
because if you get one, your Mac will sit there like Typhoid Mary, infecting
every PC you send such documents to. This will cause people to think unkind
thoughts about you
4) My favourite AntiVirus for Mac OS X is McAfee. It works very well, it
can stop and remove a full range of both PC and Mac viruses, and it doesn't
slow your system to a crawl.
McAfee also deals competently with various kinds of browser-based or instant
messenger malware such as phishing attempts and the like, which CAN give you
grief on the Mac.
Cheers