This morning I checked Amex and had a 10% back offer (might be targeted) and sweetened the deal. Please save to your card first. Get 10% back each time, up to $1000 back.
Checked Qantas shopping site and the 5% disc. code was available and says it expires in 72 days.
As for the monitor, seems like a fav around here so surely decent enough.
$755 using the K12 way.
https://www.ozbargain.com.au/node/662785