Oh wow you're coming all the way from Darwin? That's quite the trip. I assume you'll be arriving in style (that is, via Kangaroo).
I guess you're right about the quietness being due to the fact that Supanova is still about 5 months off. One thing that's needed is some proper advertisement of the event (TV and Radio ads, posters in the ShinTokyo and comic book stores in Rundle Mall). I had no idea about OzComicCon until about a week and a half before hand, so I had very little money to spend.