There are many which are very good:

- Star Ocean 3
- Grandia 3
- Valkyrie Profile: Silmeria
- Rogue Galaxy
- Persona 3
- Odin Sphere
- Dragon Quest 8

I only have tested them, and read the reviews, which were good for every one of them, just take a look at Gamespot's reviews, so can could see which one you dig most.

I also can recommend the whole Xenosaga trilogy, if you count 35 hours for each game, you have a pretty good and solid RPG.