Hi, I have a similar idea, but am going the other direction. I will be finishing up 2 years of living in Indonesia and am trying to head to California. The Holland America line fits my days and locations- but I am planning on starting in Singapore. If you had a partner from Singapore to Sydney it would be a bit cheaper. I am a 31 year old female (I have cruised when I was younger- but have had a very different travel style since then)- Still trying to work out if I am traveling alone, have one person traveling with me or two, let me know if you are potentially interested.