Umm...if it's not too much trouble, can I ask you all for some good recommendations for the DS?

I was tossing around the idea of maybe getting one, as my Japanese teacher demonstrated some of the Japanese<>English dictionary software available for it, and it looked like it'd be very convenient to have in my pocket.
The trouble is that very little game-wise comes to mind. Not because its library is unappealing, but simply because I haven't been following it very closely.

The only two that immediately come to mind are Tales of Innocence, which looked wonderful, and the Final Fantasy IV remake, which I've heard is very good.

Everything else is a mystery, so your help would very much appreciated.
I mainly like RPGs and adventure games, but I'll really play most anything good. Japan-only titles are okay too, as I'd tend toward the Japanese version of anything that's not too challenging as a means of practice anyway~ So please feel free to suggest most anything you can think of.
GBA recommendations are also okay, as I've played very little of that console's library. I
can just emulate them via my PSP, though, so I'd tend toward DS games unless it's something fairly cheap and very much worth owning.
Thanks for any help you can offer.
