Officeworks had it for $34.95 but stocks were difficult to find.
http://www.ozbargain.com.au/node/21602
From CoTD website…
Please note: This keyboard is only compatible with Mac
Logitech diNovo Keyboard, Mac® Edition
RRP$199, 3Yr Battery Life, 2.4GHz Wireless
A letter-perfect keyboard that perfectly complements your Mac computer
Expect to pay almost three times our amazing Catch price, and for good reason. The Logitech diNovo keyboard for Mac is the perfect peripheral for your beloved Mac. Its cordless, modern elegant design is complemented by its convenient functionalities. Including Logitech's PerfectStroke key system, it also comes With a three year battery life, Mac keyboard layout, integrated num-pad and advanced 2.4GHz wireless technology. Premium technology at Catch prices. Get in quick before they're all gone.
Features:
Sleek, modern design: With its slim profile, piano-black finish, and brushed-aluminum palm rest, this sleek keyboard will look right at home with your Mac.
PerfectStroke™ key system: The PerfectStroke™ key system gives you more key travel than typical notebook keyboards, so every keystroke is comfortable, fluid, and whisper-quiet. Learn how PerfectStroke delivers a near-perfect typing experience.
Three-year keyboard battery life:The extended battery life means you won’t spend your time tracking down new batteries.* Big on battery life? We are, too.
Mac keyboard layout: You can type faster and more comfortably, with all the keys where you expect them to be.
Integrated number pad: You’ll enjoy fast and effortless data entry with the integrated number pad.
Advanced 2.4 GHz wireless:So you can work or play in more places—like your comfy couch—the long-range wireless connection virtually eliminates delays, dropouts, and interference. Learn more about Logitech wireless technologies.
Logitech diNovo Mac Keyboard
RRP$199, 3Yr Battery Life, 2.4GHz Wireless
$49.00
(including GST)
+ shipping click here
CONDITION: BRAND NEW!!!
LIMITED STOCK.
DONT MISS OUT.
Logitech diNovo Keyboard, Mac® Edition. Part No. 920-001153
System Requirements:
Mac Only
Mac OS® X (10.3.9 or later)
USB port
CD-ROM drive
Package Contents
Logitech® diNovo Mac® Edition Cordless Keyboard
USB mini-receiver
CD with software
Comfort guidelines
User’s guide
Warranty 5 year limited hardware warranty
Please Note: This keyboard is only compatible with Mac. It is NOT compatible with PC