PlasticExistence

I'm looking for about a $20-30 (or less) game to tide me over for a while and I was thinking RPG because it's been a while since I've gotten into one. I mention these three because I haven't played/beaten any of them and they seem very popular, but I'm open to other suggestions as well (Fable 1 or Bioshock maybe?). If it helps, I'm a huge fan of KotOR II and Chrono Trigger.