After reading the comments about royal carribean in my previous deal here - I found some royal carribean deals to be good value.
This once again is just an example - which comes to about $60 a night, but obviously its ovation of the seas so wouldnt hurt paying the extra.
I personally havent been on one, but have heard highly about the ovation of the seas.
There is another one departing Brisbane on the 7-Feb - which comes to $1740 for 2A and 2kids with a virtual balcony room - This one is on the Quantum of the seas.
These are the two best $ per night value I could find, but there are others on this page
Enjoy and hope this helps some of us!
Also, unsure of the expiry - website says ends soon, but not much time left before they depart anyways :-).
"virtual balcony room"??