Need good DS game for a long trip and vacation

hello,

Pretty soon i am heading up north to the cottage. At night sometimes it can get very boring. So my question is, does anyone have any good suggestions about a good game or two that i could pick up for the trip and what not? I dont mind a good RPG, but keep in mind i already own these following titles, Mario kart, LoZ and pokemon. So suggest away!

I could go on and on about awesome DS games, but just look at the DS recommendation sticky thread for good suggestions. However, looking at "top games"and by clicking "all time", you can find great suggestions as well. I would also recommend the same for GBA. I guess I might as well give you a list, though (assuming you have NSMB, Pokemon, and LoZ):

Advance Wars (all awesome)

Animal Crossing

Castlevania

Contra 4

Elite Beat Agents

Kirby Canvas Curse

Mario and Luigi

Meteos

Metroid Prime

Yoshi's Island DS

The World Ends With You

My wife and I just went on a 1 week vacation to a ski resort in the Rockies and I was very thankful to have bought Contra 4 for $20 brand new at the store a few days earlier. It was a good game to have since I can play it in short spurts if I can't fall asleep and it is so fun! Maybe it is too short I don't know, I haven't gotten very far.

It is my favorite DS game- I was a big Contra 1 fan when I was a kid :)

final fantasy ring of fates

or final fantasy tactics for the ds

or

advance wars days of ruin

This belongs in recomendation thread?

Anyhow...

The World ends with you.

Best choice. Ever.

Final Fantasy XII Revenant Wings

or

Yoshis Island DS XD

The only game I can think is Metroid Prime HuntersfireXfox

And Twewy. ;)