dug 
I’ve just downloaded the new version of netscape — it has all the down-to-basics functionality of Communicator, but with the added extra of a (largely) standards-compliant rendering engine. Also, my parents should be able to upgrade from 4.73 without losing their profiles, mailboxes and shortcuts (ie without pain).
While Moz 1.0 candidate is nice, there is a Moz branch dedicated to getting interface right for OSX. It’s known as Chimera and I have to say it is nice to have aqua integration on top of Moz rendering. It’s only a pre-release version 0.3, but it appears to behave quite well :-)
Now if only the chaps over at icab could get their CSS2 implementation finished I’d have a choice of ‘perfect’ browser.