Similar deal to http://www.ozbargain.com.au/node/86732. Usually retail at JB Hifi for $149. Checked stock levels around Melbourne and seems to be in stock. Have just picked up a set and they sound very good.
A few favorable reviews;
http://www.trustedreviews.com/sony-mdr-v55_Headphones_review, http://www.cnet.com.au/sony-mdrv55-339342361.htm http://www.head-fi.org/products/sony-mdr-v55-br-dj-style-hea...
Description: The MDR-V55 with 40mm driver units is designed to deliver rich sound with neodymium magnet. Sensitivity is complemented by rugged 1000mW power handling, making them ideal all-rounders for daily listening with any source.
Slim swivel folding style and reversible earcup for easy portability
Durable and lightweight flat cord
40 mm driver unit for high quality sound
Resists high power input up to 1,000mW