Australia
AI-con in Hobart Tasmania. February 7-8th 2009
Supanova Pop Culture Expo in Brisbane in April, Sydney and Perth in June, and Melbourne in March. (This one is not just anime. it is also sci-fi and western comics as well)
AV-con in Adelaide, in July.
Manifest in Melbourne, in September.
SMASH in Sydney, in August.
Wai-con in Perth, in end of January/beginning of Feburary.
Animania in Sydney in March and August, with smaller events also in Brisbane in May and September and Melbourne in April. (if you are traveling from interstate or overseas, the mini-animania's are not worth attending at all IMHO. overcrowded, to small a venue, refuses to upgrade to a larger venue, and over-priced for what is on offer)