I am in Australia but am not worried about where in the world it comes from as they aren't avaliable here to my knowledge. Appart from Tower Hobbies does anyone know of any other good places to purchase one of these engines, looking to get the 86CC one in particular.

Om, I don't know where else to get one, however if you do a search on "fuji" in this forum there was a long thread just recently talking about fuji's.
You might want to read it before purchasing one of these motors.

Depending on your exchange rate, you might try www.justengines.unseen.org out of England. I've bought many engines from Paul there, and he has been very good to deal with. Haven't bought a Fuji from him, since I get better deals from Tower here in the US.