You can't forget about The Legend of Dragoon, in my opinion that was one of the greatest PSX games ever, along with FFIX as well 
Legend of Dragoon was just OK for me, it wasn't bad, but wasn't that great either. I used to own the game, but it was one of the ones I traded in. Not a rare or hard to find title, I have seen it on the used racks of game stores recently and for around $10.