I'd recommend Trauma Center and Phoenix Wright, if you haven't played these you gotta have to, trust me! The only thing I don't like about Phoenix Wright is that you better have a few spare hours when you wanna play a game. You can only save between chapters and they're fucking long, there's tons of text to read and you can't skip it or even make it display faster.

Oh and er hm, I got an m3 sd with passcard 3. Nice little 1gb sd card to go with that :)