As far as I understand it, if you are over 30/31 you have to have a company offer you a job and be willing to sponsor your work visa.
I would be happy for someone to prove otherwise as I would love to move there permanently, but being a 30 + architectural technician means that I need a company to give me a job before they will let me into the country, which is easier said than done from here in the UK.
that is what i kinda figured, being over 30 and wanting a visa is sort of an egg and chicken thing most places want you to have a visa to apply and i need a job to get a visa.