Bose AE2 headphones are on clearance at Officeworks for $49.00. I picked up two sets earlier at Richmond Officeworks (Vic).
These are a superseded model, but for $49.00 you can't go wrong imo.
Not sure which stores have stock, so you'll have to give them a call and ask.
29/5 11pm: We've been informed VIC is out of stock, see comment
30/5 5pm. Latest known stock levels below. Need to ring to confirm stock levels, see comments. Add to comments if a store has sold out so it can be updated.
NSW
(Store, quantity)
Glebe, 1
Wagga Wagga, 1
Rutherford, 1
Port Macquarie, 1
Tuggarnong, 1
Belconnen, 1
VIC
Bendigo, 2
Campbelfield, 1
Glen Waverley, 1
Mornington, 1
Keysborough, 2
Altona North, 1
SA
Trinity Gardens, 1
WA
Fremantle, 1
Midland, 1
Malaga, 2