There's a little story on the ever entertaining Stupid Security blog that explains how the mere presence an Apple Mac logo is (or rather is not) enough to ward off all nasty malware.
It made me smile. If only information was a simple as changing brands. Actually forget that as if it was that simple then many of us Information Security Professionals would be out of work!
Steve, if you watched any films you'd know that what you really need is a *huge* Apple logo, clearly displayed to the viewer, to get proper protection! :-)