Okay, this will be quick and dirty. I never thought to mention this in my previous article because this issue never crossed my mind.
Using Intel processors will not open Macintosh computers up to waves of viruses, malware, or spyware. The vast majority of malicious software you hear about in the news targets Windows. Stated even more clearly, these viruses and such attack the software, not the hardware. Therefore, as long as you do not install Windows on your shiny new MacTel (which would be silly), you should be no more prone to virus attacks and such than you are right now.
Feel better? Good. Now go take some deep breaths; play some Katamari Damacy, and don’t worry about Macintosh security. It’s still there.