"The much hyped built-in malware protection into Apple's Snow Leopard upgrade appears to be nothing more than a XProtect.plist file containing five signatures for two of the most popular Mac OS X trojans."
Wait, so Mac isn't virus-proof? Well, thanks to this information everyone that I have ever known to buy a Mac bought it for the wrong reason. The slow system, buggy interface, and random crashes are not worth the non-existent virus-shield.
http://blogs.zdnet.com/security/?p=4139&tag=nl.e539
I am sure Dell/HP fanboys will back me up...
Myself, I run neither. I have a homebuilt PC that suits my advanced needs. I also run Linux, the only OS that has yet to give me a virus.
Enter the Mac supporters...