I am looking to buy 3 flash carts for the DS Lite(my sister's included). I don't really care that much about price, just want a really good one that I can do mostly everything with(I know I need to buy 3 SD cards as well). I would also like to be able to run GBA Roms with it. I know there are no emulators and would need a 3-in-1 gba flash cart to do it(I think), but have no idea where to purchase and if there are different kinds that might be better than others.
Any help is greatly appreciated!