These collections are both at their lowest ever prices on Amazon.uk at the moment. ~=approximate price in $AU after removal of VAT (divide by 1.1) and using exchange rate of £1=$A1.577 (*1.577)
James Bond six disk collection is superb quality and has just dropped by 8 pounds
http://www.amazon.co.uk/James-Bond-Blu-ray-Collection-Vol-1-…
See price history here - http://www.blu-ray.com/movies/James-Bond-Blu-ray-Collection-…
Superman also pretty good value. Superman IV is a bit of a waste of time, but the quality of the other Christopher Reeve ones is pretty decent. It also has all the superman cartoons from the 1930's-40's, a few others like Bugs bunny and Daffy Duck parodies of Superman, and a black and white movie from the 1950's, among other things.
http://www.amazon.co.uk/The-Superman-Motion-Picture-Antholog…
Price history - http://www.blu-ray.com/movies/The-Superman-Motion-Picture-An…
For price history links, click on the graph icon near the price.
A little better than the prices quoted as VAT is 20%. 22 pounds is about $28