why would you need software? :D
Chess Software

I was considering Chess Master 9000. That was one of the only programs I could find for Mac but then I read a lot of bad reviews for it. I splurged today and signed up for a year premium membership here. Thanks for the info.

Seconding what Kepler says above.. I'm a happy ExaChess owner; it's a fine database and 'toolkit' package.
It's not cheap but you can try a free version whose only significant limitations are on the number of games you can put in your own database and the number of databases you can open at once.

why would you need software? :D
I keep my own games, of which there are thousands, in databases, along with other specialized databases that I use for training on tactics and endgames. I also use a selective batch of games as my openings explorer.
I don't need database software, but since I have it, I use it nearly every day.
I'm a new mac user and looking for advice on chess software.