We are thinking about Borumba deer park, depends on how long we go for, not sure yet.
Gypsy, we went to Inskip at christmas time, weather was awful, very windy and raining, we were in a horrid spot so we didn't stay long. Not trying to put a dampener on your trip but a word of advice, get there early! The website looked like there wasn't that many people there prior to boxing day and also looked as if most were arriving on the 28th but when we got there it was packed. We drove around for 4 hours looking for a spot. The sand was also very soft due to lackof rain but should be all good now.
We had a lovely trip up there in sept 2008, we will definetly return again but not at christmas time.
Hope your trip is a good one.