Glad I could help :)
Funny thing you mention though is regarding all the Win32 malware on your Mac. I work with a lot of customers who require AV on their *nix (although not necessarily Mac) systems thinking that it will protect them. The vast (like >99%) of the signatures in that AV are for detecting Win malware that could reside on the *nix filesystem (handy if you use that *nix box as some sort of fileserver or whatnot) but the signatures are not generally for protecting those boxen even if it's labelled "super-awesome *nix viruscatcher".
If you want to protect *nix then you gotta use whitelisting. EOM.