Modern computers are not only capable of running most PS2 games at full speed but also at much greater resolutions than the original console hardware can render. It has a very active development community that is constantly working on compatibility and adding features - the code is tweaked so often that new subversions (SVNs) of the emulator are compiled every day. PCSX2 is an open source emulator that allows you to play PlayStation 2 games on your PC.
If you are currently using PCSX2 to play through a PS2 title, why not share your config? See the second post for instructions on how to submit a guide. Information and configs were scattered between random screenshots and discussions throughout the old topic, so we decided that PS2 emulation deserved a similar counterpart to Stallion Free's excellent Dolphin thread.
The purpose of this topic is to serve as an introduction to PCSX2 and to collect GAFfer submitted guides for running games in a playable and enjoyable state on the emulator.