I Need Some Help

Hi everyone; I need some help finding a card that's right for my DS.

I tried looking through the stickies and other threads but I've come up with no clear answer.

To help you help me, I'll just put up what I have and what I need.

I have
-A Colbalt DS Lite
-2GB MicroSD Card with SD adapter

I want to just play GBA and DS games on it, but I don't know which card to get. I looked at another thread and it stated I needed another card if I buy a certain one.

Is there a card or a bundled product that can play run homebrew to play DS and GBA games?

I'd really appreciate it if you guys could help me find the right card for me.

Best option is a decent slot-1 device (CycloDS Evo, Acekard 2, Supercard DS, M3 Real etc) with the slot-2 EZ-V 3in1 expansion pack to let you play GBA homebrew.

Ah okay. So I don't need to add any files if I get the M3 Real except for the system files from the website right? I thought it'd be more complicated than putting custom firmware on a PSP.

Are there any good websites to buy these cards from?