Thanks to Microsoft, I finally made the switch to Firefox on my Powerbook. I'm totally addicted to clicking links with the wheel-mouse button to open them in new tabs. Firefox does that by default on my platforms (Solaris x86, Linux, and Windows XP), but for some odd reason, on Mac you have to map the wheel button to be a "Control Click" rather than just a click. I couldn't do that until I downloaded the appropriate Microsoft
Intellipoint mouse drivers.