The website CEPro offers an overview of Z-Wave automation for Mac. I'm glad to see several options listed, the Mac has been completely bereft of Z-Wave based automation software for far too long.
But I have to admit I'm a little skeptical of how many of these actually exist, or are of acceptable quality. Don't get me wrong, I have many Z-Wave modules in my home and really like them, it's just that I haven't yet found home automation software that works with Z-Wave in the same way that X-10 and INSTEON-based applications do. I'm currently using Vera, but it's a struggle.
If you've tried any of the Mac packages mentioned, or others, I'd love to hear from you.