Is there a way to stop Phishing on the Apple Mac's Safari Browser?

I'm not casting aspertions on Apple's Safari browser in any way. @ InfoSec I discussed Internet Explorer 7's Phishing filter (for Windows XP and Windows Vista) - several people asked me WHY Microsoft don't provide something for the Mac to help mitigate the threat of Phishing.

Apparently IE 7 isn't going to support OSX hence our Phishing Filter won't help - I don't know if this is true - comments please.

If it's true then there must be a third party or the Safari authors to provide such support - any idea? If so please comment as many Mac users would like to know how to deal with this problem.

Thanks

Steve