I had been getting really sick of my puck mouse when I downloaded Toon Boom Studio, and found it came with a Wacom tablet driver that isn't available, as far as I could tell, from Wacom. Be warned though. This driver proves that OS X isn't entirely crash proof, it can and probably will bring down the whole OS a couple times.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20010607230108140