For purchases between 24/10/07 and 31/12/07
$100 Cash Back
MP830
MP600R
$50 Cash Back
MP520
MP610
MP970
MX700
$30 Cash Back
MP470
MX300
MX310
$20 Cash Back
MP220
MP210
Fill in the Claim Form, attach a legible photocopy of your
receipt, along with the original barcode cut-out from the
product box, and send in your claim to:
Canon PIXMA Christmas Cash Back,
PO Box 700,
Eastern Suburbs MC NSW 2004.
Claims must be received by 5pm EDST on 31/01/08.
Refer to full Terms and Conditions on the Cash Back
claim form.
If you combine this with a lowest price search engine like staticice.com.au, you could potentially have yourself a very cheap multifunction printer (e.g. MP520 is $153 from MSY, with $50 cash back = $103 for a very capable printer)
Or else look out for these models on sale in the lead up to Christmas. I think the Officeworks catalogue mentions a couple of them, although I don't have a copy of it here with me at the moment.
(Edited for bad maths)