I want to start preparing my wires so when my N64 comes I can solder the wires without any trouble. About how long do the wires need to be? And what gauge? I think the thickest I have is 18. Thanks for your help.
That's good for power lines, but for signal lines like the N64 controller you will want something like 28 gauge to keep the size down. You can use IDE cable for everything but the 3.3v line and 12v line.