I'm primarily interested in just running PocketNES on my GBA Micro and don't own any other Nintendo handheld. I like the idea of using SD memory if possible because it's so inexpensive and I can use it with other devices. I am concerned about the power drain of the flash cart due to the tiny (micro) GBA Micro battery, so are there power saving advantages to using Mini or Micro SD cards rather than standard sized SD cards? And, BTW, cheap as possible is a another goal here. I already have an ancient Flash Advance Linker and a 64Mb cart, but that isn't big enough and I can't find larger, inexpensive carts for it anywhere, so I figure that I might as well start from scratch and get something based upon more modern technology. What do you all recommend that I get and where do you recommend I get it? Thanks in advance (no pun intended) for any help.