The aussie ones tend to be a bit expensive compared to the foreign ones
Before i linked it booko was working fine now its all slow.. maybe we're killing it
The books I usually buy (physics, maths related) are generally pretty expensive even in the US but thats nothing compared to Australia. Take introduction to Quantum Mechanics by David J. Griffiths as an example. $121USD new in the US is a reasonable price because its quite a good book. You want to buy it in Australia from say borders? $327. Ok lets try Angus & Robertson... $344. Two of the biggest book store chains in Australia and its a 254% increase in price for a book.
These stores always bitch and moan about amazon taking away their business but look at their ridiculous prices.
Fuck I hate Australian currency.
But yeah back on topic.
Book Depository UK is good and so is Amazon even though their shipping is a bit bleh.