I'm thinking about making the big switch. One of the reasons...I'm tired of all the Windows security issues! I haven't heard much about Mac viruses. I'm sure there are some out there but just figured that you just don't hear much about them because Macs only cover a small percentage of computer users. So my question(s)...are there serious viruses/trojan horses out there for macs?? What virus software does OS X come with (if any)? ...others reasons why I'm considering the switch...I've heard/read a lot of good things about mac. I've been using computers most of my life. Starting with a commodore 64 (just for games) and have been a windows person since 3.1. So I figured it was time for a little change. Right now I have a p3 600mhz Gateway desktop that's almost 5 yrs old and a 2 yr old Sony Viao 16.1" (aka 8lb brick). I'm leaning towards the 12" PB, but have not ruled out the 15" PB. I guess I'll make my final decision after I get to see them in person.