First time Mac user, how secure is Safari compared to Firefox? I have a new PB G4, I mostly use my windows PC for internet wondering how safe and secure is Safari. I haven't even setup my address book or anything just hookup the DSL cable to G4 and try to surf. Do I need to download Firefox onto this PB? Do I need extra anti virus and sybot? If I download Firefox will it work the same in os-x as it does on my windows' pc? I do alot of online shopping and banking. Thanks