Optus E5251 3G WiFi Modem with 5GB included data. Seen in store at Target Ballarat VIC after looking for games from the recent clearance.
$5 cheaper than current Dick Smith deal and 50c cheaper than price at Officeworks. If someone is keen enough you could probably pricematch.
Also half price, Optus E3351 USB Modem for $14.5 and Telstra 3G WiFi Modem MF65 for $29 with 1GB included data.
Optus $2 sims were marked as reduced to 50c but there were none in stock.
I saw these for $25 in kmart, but everyone wants the $10 vodafone modems.