OK guys, Merry Christmas! Because I love the 68kmla community, I spent half the day writing up super-detailed instructions on how to build your own Floppy Emu, complete with all the files required to do it. You'll need SMD soldering skills and a lot of patience, but it can be done! I hope this helps someone. Now let the SD floppy-ing begin!
http://www.bigmessowires.com/2012/12/15/build-your-own-floppy-emu/
http://www.bigmessowires.com/2012/12/15/build-your-own-floppy-emu/