Trying to figure out what to do with my old computer that I don't use anymore. Haven't used it since I got my editing rig. Might just give it to the girlfriend since she doesn't have a computer.
THE BEST METHOD to run PSX games (and everything else for that matter) is via Retroarch - http://buildbot.libretro.com/nightly/
If you have any questions on how to set it up on Windows please feel free to ask, its very easy.