Years ago, I tried to install ATM 4.5 on my mac and it crashed my whole system. I had to have the motherboard replaced. The computer wouldn't boot. And that is the last time I attempted to put my fonts in a program for organizing them, other than the Fonts folder in the System Folder of the Hard Drive.

Now I have too many and can't fit them all in there, so I am thinking about getting Extensis or Fontfolio (is that the other one)?

What font 'organizing' program do you think is the best for Mac and why?