I already used my mini-price joke, so my title this time isn't as clever...
InnoGear now offers with the purchase of its 64 MB MiniJam ($199) one of these accessories for free:
Flat Panel Speakers and Backphones
Speedloader and Backphones
InnoPak2/V and Backphones
You may also purchase the Vaja leather case for the Visor+MJ for $35.00.
I've been meaning to try out those backphones. I really need a good set of headphones for when I travel because my current earphones don't do the job for extended listening on my Visor or my PowerBook.