Camino

I've been running Camino 1.0.2 for the past few days on my iBook. In the event you're unfamiliar with it, Camino is a native Aqua app but uses Mozilla's Gecko HTML engine.

When I last tried it out over a year ago, Camino was not ready for daily use and I saw no reason to switch from Firefox. That's changed. Although it still doesn't support Firefox extensions (and AFAIK it never will) it's stable and fast. Firefox of late has really become sluggish on any platform, which lead me to start using Opera and Safari more. Both are fine browsers but because Camino uses Gecko, it renders more pages without the little quirks you run into with Opera or Safari.

Camino is worth a try if you're running Mac OS 10.2 or later.