Cheap fares from Australia

[dit]

We were lucky to snare return fares from Australia to LA for $999 for my wife,two daughters 6 and 4 and myself mid January to beginning Feb(15 days) flying Virgins new pacific airline "V"".Didn't plan trip but cheap fares were compelling.Now that we are going was looking for advice about Disneyland California in January.How long should we stay in Disney?Best place to stay onsite?Any suggestions for other places to go around California in January?WE will probably hire car.Thanks very much