If you want an old school rpg with advanced skill gaining system and great unmatched voice acting talent you could try . Its turn based. Probably the hardest turn based rpgs i've played. Don't even think about playing anything above the lowest difficulty though, its just too frustrating with the non stop status effects and 1 shot kills they do to you. In Sirtech games, easiest difficulty is equivilent of normal/hard mode in regular games.
Also don't use the 3dfx glide wrapper that comes with the game, it causes videos to crash. I'd use the games 3dsetup.exe, tell it to use directx7, then download dgVoodoo 2, which is not only a glide wrapper but also a directx wrapper that can convert old directx into directx11 and lets you pick any resolution you want.
@masterhand: nice! 6 is regarded by many as the best ever. For some reason I still love 9 the most. 10 is much more linear but still somehow very good. Very emotional story. I hear Chrono Trigger is up there too but I have only played a few hours of it so I can’t really say. Started out great though.