Intro: As a writer, I find Spell Catcher X is indispensable. It is one of my top 5 must have apps. I'm glad Apple integrated reasonable spell checking, but it really doesn't come even close to all the features built into Spell Catcher. Why the app ever got slammed here at VT is beyond my comprehension. And yes, it runs fine in 10.6. But see the caveats about 64-bit app compatibility with the current version.

RainMaker have provided an updated Quick Start Guide for 10.6 users:

http://www.rainmakerinc.com/kb/index.php?article=97