Absolute MUST HAVE DS titles

Hey everyone I've been saving up some cash to go on a mass DS game purchase binge, but I'm not sure where to start.

What does everyone recommend as a MUST HAVE title? I already have:

Phoenix Wright - Ace Attorney
NEW Super Mario Bros.
Sonic Rush
Trauma Center - Under The Knife
Another Code

Since I like virtual/rpg games there are two coming up that I must have:

Mysims - coming out in September

Rune Factory (a harvest moon) coming out (hopefully, they keep moving the date) in August.

well i'm a fan of RPG's so............. poke'mon diamond/pearl, mario luigi partners in time, and final fantasy 3.

if you have wifi, getmario kart, if you don't get a wifi card thing.

mario kart

pokemon

Just finished Rocket Slime, it was wonderful. And currently playing Etrian Oddessey, a great RPG..but only for the strong. Both games I recommend.

RS

well i'm a fan of RPG's so............. poke'mon diamond/pearl, mario luigi partners in time, and final fantasy 3.

if you have wifi, getmario kart, if you don't get a wifi card thing.Cupcakeeater

That just about sums it up for me as well.

Brain Age

Mario Kart

Final fantasy 3