FIRST THAN ALL... i am honestly sorry to hear about your lost brett, i trust you will get better.
and now...
eteponge and scescop
i congratulate you in having big balls and going to to dragoncon
thats admirable
hope you can get in
a quick advice
dont start bashing in dragoncon just yet (you select easy targets, they dont have debate knowledge.. etc.. etc..)
dont engage in dicussions now winston, wait until january and follow the procedure already stated, follow their rules right now, so lets wait till january and then apply for that.

and
if i might add.. since i am a skeptic
i would recommend not mentioning or using homeopathy
since is just water and they will explain placebos and ridiculize you, since science has debunked homeopathy thats like giving away the debate. go with the other unexplainable things in paranormal, but focus in some areas.
so i would go for esp, precoignition, examples of predictions, data of how many people believe in esp (i think is like 50% in america) and stuff is not proven scientificly (does that word exist?)
so get ready to the debate, collect data and numbers (skeptics language) but dont start arguing with them just yet, it isnt time and you dont want to win a debate with dragoncon organizers, you want to win a debate with shermer and the other folks.
so good luck
and i honestly applaud your courage