If you're looking for PC JRPGs, you're choices are going to be rather limited. Here are my suggestions for console games, though, along with what systems they're available for:
Final Fantasy IV (SNES, GBA, DS, called Final Fantasy II on SNES)
Earthbound (SNES)
Mother 3 (GBA, Japan only but with English Fan Translation)
Golden Sun (GBA)
Golden Sun: The Lost Age (GBA)
Golden Sun: Dark Dawn (DS)
Pokemon: Any Version (GB, GBC, GBA, DS)
Super Mario RPG: Legend of the Seven Stars (SNES)
Mario & Luigi: Superstar Saga (GBA)
Mario & Luigi: Partners in Time (DS)
Mario & Luigi: Bowser's Inside Story (DS)
Shin Megami Tensei: Devil Survivor (DS)
Dragon Quest IV: Chapters of the Chosen (NES, DS, called Dragon Warrior IV on the NES)
Paper Mario (N64)
Paper Mario: Thousand-Year Door (GCN)
That's about all I can think of at the moment. I've played more, but these are worth a look into. I also apologize for the glut of Nintendo consoles, but I don't own any consoles not made by Nintendo. So...yeah. And other than Recettear, I don't know of any PC JRPGs.