Dick Smith is offering the BOSE QuietComfort 25 for $374.95, down from their normal price of $469. This is the cheapest on the market by $70 and appears to be the cheapest ever (bar 1 day in Jan 2015).
Other versions
Android Version - Black
Android Version - White
You can price match at JB.
Rated 4.5/5 based on 1808 reviews on Amazon
Significant noise reduction for travel, work and anywhere in between
Deep, powerful sound for the music you love
Lightweight, comfortable around-ear fit you can wear all day long
Control your music and calls on Apple/Android devices with inline mic/remote
Distinctive design in Black or White with carrying case included
Via Stu @ Geekzone