I Changed to Mozilla at home a few months ago, I think, the same day that governmental computer agency (I forget the name) issued their warning to just not use IE. I've had zero virus problems since, although Spybot and Adaware still pick up some stuff. I'd change our company over to Mozilla, too, but we just don't use the web that much there and our network guy gives me the heeby-jeebies whenever he tries to change stuff around ;)