I have a user who is absolutely adamant that he have a good and functional anti-virus program for his laptop. He's been less than pleased with Norton and Virex. Does anyone have a recommendation? He's not concerned with license type. He's happy to buy something if it doesn't completely suck and doesn't slow down his computer (keep in mind though that it should be effective should a viable Mac virus arise). Any suggestions/recommendations are welcome and I thank you in advance for any/all advice.