will it be advisable to stay on disney prperties, we are a couple 50 plus

HELP, i overwhelmed, i am looking to book and Disney cruise, would anybody recommend anything special, where should i start, we live in NJ WHEN DO YOU THINK THE BET TIME TO GO IS?HOW CAN I SAVE A BUNDLE, ANY HELP IS APPRECIATED

I have 2 x adiults and 2 x boys aged 10 &11 (in 2011) looking to travel from Australia to LA to visit disneyland and also do a 7 day inside passage cruise. Thought we might do a package deal with Disney cruises (the kids would love it). Does anyone have any info on Disney cruises and also any ideas on packages Aus to LA, Disneyland and Alaska???