Cyclo is probably the best and the most expensive one, Acecard is more cheap, but still good though.... For myself I've got a R4-Fake Card (r4isdhc), but actually I don't care, since everything works ;-) Ahhh and here: GBATemp: Best FlashCard
ohh another thread like this? cyclo ds is the best but way too expensive so go for edge ds, a lot cheaper but because it's cyclo's clone it has good quality
I think M3 is the best. Firmware is updated frequently and games that don't work are working in a few days, if not a few hours. Never had a problem.
R4 firmware hasn't been (officially) updated in a good while. Oh yeah, and your avatar is GROUSOME!!! Lol what is it?