very nice of you to help the computer challenged folks on here lol. happy thanks giving too!
i actually have the hard drive my macbook pro partitioned down the middle-half the MAC OS, and half is windows XP.
i have AVG antivirus on the windows side. it's free and works great. i hardly use the windows side anyway.
the MAC OS side of my hard drive has no antivirus program. there aren't many viruses floating round for make, and the ones that do exist are very severe. that's the reason there are hardly any antivirus programs available for MACs .
i don't keep any important info on my MAC anyway. (bank account info, etc..)