For any print production environment, there are still a few missing variables for OS X to take hold.
First off, the underlying grunt tools. A big one of those is font management. Suitcase 10 for OS X will be here in mid November.
Next, you have your illustration applications. Freehand and Corel Draw 10 are both here. Illustrator 10 will be here in a few weeks. If you are one of the few who use Canvas, it's here too.
Then there's your raster image program - Photoshop. It runs fine in Classic if you have a fast enough Mac (G4 or better) and have enough RAM. God only knows when Adobe will deliver the carbonized Photoshop. It was expected in January, but since InDesign will be released then and Adobe has made any mention when to expect Photoshop, it's looking unlikely. Maybe we'll get an announcement at MWSF 02.
Now for page layout apps. If you use PageMaker, you will have to live in the Classic environment. Same for FrameMaker. There are no OS X versions planned for these products.
Quark 5.X will be released sometime next year. Anybody familiar with Quark knows that probably means Dec. 31st 2002. Quark runs pretty well in Classic if you can handle that.
InDesign 2.0 is due in Q1 2002. It will run on both 9 and X. I've been using the beta and am thoroughly impressed. It has just about every feature I ever used in Quark 4.0, and then some. Plus, with it's configurable keyboard shortcuts, you just push a button and all your Quark key commands work - no need to relearn the basics.
I'm betting that Adobe will make huge inroads with InDesign 2.0. Quark should be very afraid....