I have lived in Aussie for the last 8 years and am grateful every time I leave the doctor's office without having to fill out one stinking form. This is a wonderful country.
Support the Australia economy where you can. There are some good online bookstores like Booktopia. If you can't find any joy there, try the Bookdepository and Abesbooks in the UK (owned by Amazon?) They have low shipping costs. There is a large online electronics industry here. Maybe it won't be quite as cheap as buying from the US, but if you have a problem with the order, it won't take months of overseas troubleshooting to figure out. Australian ebay will give you access to the China markets.