Cheapest for the Version ii.
Silver Color here :
http://www.ebay.com.au/itm/Bose-QC35-II-Quiet-Comfort-Noise-...
Don't forget cashrewards 1.25%
https://www.cashrewards.com.au/ebay-australia
Original 20% ebay deal
https://www.ozbargain.com.au/node/330875