You can also use the Animal Crossing eReader cards with the GC version.
The eReader requires the original GBA (it won't work with the SP).
The GC version also has several benefits over the DS version; namely the
many holidays you can celebrate in the game. They emasculated the DS
version for apparently PC reasons that no one can really figure out.
>> Stay informed about: AC: Is it worth playing AC on the GC after ACWW on my NDS?