Does anyone currently play with any PS2 emulators?

I am looking into the PCSX2 (which works on mac too) so I can play Star Ocean 3 to/from work.  Anyone have any success with this or any other emulator?  Also anyone know where a BIOS might be?  I saw an article on how to get one off of your own PS2, but I am a little lost.

Any good games too?