Build from 2 July 2012, the first alpha version for 0.9.7. Downloads of the PCSX2 emulator port for Mac. The emulator also has a built-in BIOS and the ability to edit memory cards as well.
Then after installing PCSX-Reloaded all you have to do is to drop the game you want to play in it. It would be better to keep all your playstation games inside one folder on Mac.