[IngredientX]

Markus, <a href="http://www.paceap.com" target="_blank">Pace Anti-Piracy</a> are pretty big dogs in the world of Mac copy protection. I remember them from my ProTools days; they had some problems when Steve Jobs decided to remove floppy drives from the Mac line on the dev equivalent of 48 hours notice (not good when your copy-protection scheme is centered around floppy disk-based keys), but they seem to be back on the ball, and offer hardware, downloadable, and/or floppy-based keys. Check 'em out.

Also, if I may briefly editorialize: many of the more fanatic Mac users are very picky about the appearance and interface of their computers and programs, sometimes overlooking its actual function. I know the previous sentence is just opening a can of napalm, but I HIGHLY recommend looking at how Mac programs set up their interface, and building that into your program. This can mean everything from adding cut/copy/paste functionality into the program to making sure the buttons look like Mac buttons to making sure the shadows fall in the right direction. I've actually heard different Mac enthusiasts in different situations complain about a program looking "too Windows." I believe Apple publishes documentation about their design standards, and what it takes to make your program look like it belongs on a Mac. They've probably retooled it lately to reflect their design of OS X; I'd suggest checking that out.

The Macintosh community can be very picky and exasperating to deal with; but they are also industrious and loyal, and if OOTP can break into their market, it could be the start of something big.

Good luck Markus!