I am a relatively new Mac user(I've had my MBP for about 4 months now). On my old PC i used Symantic(spelling?) anti-virus software. The reason for using was for the simplicity of the software, yet it was effective. My question is, what kind of anti-virus software is comparable to that of Symantic? I'm mostly interested in general file scanning ability. Also, is there any very effective anti-spyware type software out there for Mac?