honestly dood, there's not much you can do......get a good firewall with good virus software and you should be fine...just get the updates when they comes out =\
there isn't really an option besides switching to mac, since major software like the adobe suite and stuff isn't designed for linux and that.......and I'm sure there's going to be many more problems for mac if more people switch to them and start using them, I think (besides that it's based off unix) the majority of the reason there aren't that many viruses for mac is that there's almost no one (relative to the computer using populus) who uses it...so there's no one really writing viruses for it ;P