You need to be in the mindset that its not a holiday. Apart from the stuff you have mentioned you should do some realistic shopping, pricing food, furniture, white goods. If you know where you will be living/working then make the commute at the time you will be doing it to see how easy/annoying it is. Do some stuff in the evenings like go to the cinema or go bowling ie stuff you wouldnt do on holiday probably but stuff that is handy to experience.
Don't know what kind of visa you have but there is not a lot you can do around admin stuff like driving license, medicare, tax until you are here for good.