The electronic man who gives me the project, likes ( and apparently buys ) all that goes out : GBA, DS, PSP,... So, he reads a lot of new's, and one gave him the idea of such a funny project, an investigation's project. He gives me a DS ( and will probably give all i will need ). I have two month's after my exam's ( in january ) to try to realize something but i must buy a PCI card and a DS flash card before... and i want to know what are the best card's and flash card between all card with chipset RT2500/RT2560 possible to run my homebrew application's. Have you try some cards / flash cards ? What are the best ones ? Is a GBA card ok to run DS function's as pad, wifi, double screen ? Or the DS goes in a sort of "GBA mode" when a GBA game is put in it ? Yorel