I understand that its best to take flight from Gold Coast to Sydney. Anyway, due to budget constraint, me and hubby (plus 6 year old daugther) would like to take train or bus? Is such transportation service available from Gold Coast (Surfers Paradise-we will be staying at Holiday Inn for a week)) to Sydney? Which is much convenience; train or bus? And how long is the journey? Need advise from all of you here..Thanks so much!!!!