first off, i'm looking at this afterburner product:
http://www.success-hk.com/pp/item_detail.asp?itemID={EE461CB8-2E9B-4471-8BF9-20BD47F4A52B}
it's a backlight you solder in to your gba... anyone try it?
also this:
http://www.nes-emulator.com/gameboy_flash_card.htm
how good is this nes emu? kind of expensive, but if it emulates nes well, could be worth it