Fantastic guide OP. I'm extremely surprised even a hacking noob like me could follow this; just fantastic. Thanks again! (and it did work on my 2gb USB)
Would a regular (2gb) USB work in place of an HDD, or does it HAVE to be an HDD? I'm planning on only using this for 1 game (Pokemon XD GoD).
And on that topic, the trade functions between console GBA and GC emulator should still work, right?