Yes you could do floppies but those are getting harder to find and my experience is that the fail after some time. My floppy collection probably looses 10% of its members every year.

The real solution is Big Mess of Wires Floppy Emu. It hooks into the floppy port on the back and let's you mound a 40MB hard drive or a floppy disk image on you Mac. No fan no noise