Arc:Twilight of the spirits is pretty suave on PS2. Suikoden is supposed to be a good series but I got bored of Suikoden 1. Chrono Trigger is indeed fantastic. Megaman X Command Mission was pretty fun, The pokemon games are fantastic RPG's, I dun care what anyone says. Medabots had a fun GBA rpg, too. Breath of Fire and Grandia are also good.

Edit: Then ignore CT and Pokemon and Medabots. :D Breath of Fire III is PSX but awesome, they have PS2 one's as well. Arc has a gooood story. Megaman is just fun, if a little repetative.