We have started an open beta test of Filter Forge (http://www.filterforge.com) for Mac OS X. The beta is public and open for anyone with a Mac -- no registration required, you can download it right away. Here's all the info about the beta:
Also, we currently offer a 30% holiday discount and Mac version preorders. The preorder also comes with a 15% discount -- combined with the holiday discount, this amounts to 45% off! Here's the link:
Happy holidays everyone!