av got a ds lite pink and a card reader if i buy this http://www.realhotstuff.com/lite-passcard-kingston-microsd-p-126.html can i play ds roms! thanks
Yep! I would recommend downloading the latest M3 firmware and Gamemanager software, and that you read my guide (link in sig)
Not really, my friend has a £20 Supercard and £5 CF card and can run almost everything my £100 setup can. That price already beats that of running homebrew on the PS2 for example where at least you need a USB pen (£10), Action Replay (£20), a PS1 Game (£2) and a Memory Card (£15)