Bigw have a few logitech items on sale as well.
Other Logitech gear:
http://www.bigw.com.au/bigw/search/bigw_search_results_galleā¦
Coupon: https://www.ozbargain.com.au/node/127187
Most logitech stuff can be pricematched at ow as well if it is more convenient for you.
Edit: Online sold out. Price in stores should be $26.60
This must be the new version of the M555b, wondering if the face of it is still glossy, I really prefer a matte finish, it feels better.