I've seen so many posts over the 2 years that I've been researching our move and the general consensus has been 'take as much stuff with you as you can'. Things are expensive in Oz, especially electrical items.
I've even cleared out the airing cupboard and bagged up stuff that I would probably have chucked before the move but apparently bedding, towels, etc are expensive so I've kept them all as they will do us a turn while we get settled.
We will have to dump some things like the kids bunkbeds which are falling apart, the freezer and fridges as they are simply too old. The washing machine we'll bring as its new, the tumble, hoover, PC and other electrical stuff we'll be shipping too.
Its worth remembering that UK TVs wont work in Oz, except to watch DVDs & Videos or for use with the playstation, Xbox etc.
The bottom line is we'll bring as much as we can fit in the container and get rid of it there if its not needed.
K x
p.s.
top tip: buy some 4 or more socket extension leads to take as you then only have to change one plug - Oz plugs are different to UK plugs and everything will eventually need re-plugging (hmmm is that a real word

?!!! lol)