Optimizing Osx For Audio Recording, How do you improve Jaguar's performance? Options

[D-plex]

I'm sitting here with Cubase SX on my drive, and now confronted with the reality of making music on this "new" Mac OS I'm wondering what can be done to improve audio recording and playback performance. On OS9 I would create a new extension set with the bare minimum of extensions and control panels, turn off virtual memory, and turn off appletalk (for starters). What can you do with OSX?

Some adjustments just seem common sense: set your monitor to thousands of colors, quit unnecessary apps...but what about something like quitting the dock? Would that help? Or how about shutting off networking, file sharing, or speech?

Does anyone here have any tips, or know of any websites that feature advice about the relatively new science of optimizing Jaguar for music production?