Income tax question

[usa-69z]

thanx guys for the input .....Dale ive spotted a tattoo position in the portland/oregon area for a feb start , i havnt been up that way but will be there in feb for a visit ...I am also very experienced in healthcare , working in hospital operating theatres in Oz for many years..The wife is in disability care with kids here...We are just weighing up our options as we visit the US west coast for holidays but we come home every year and talk about living there... I dont really understand the 'expat' or imigrate difference? I do see a greencard can take a long time to organize.

Thanks, Gav