The current acute shortage of nurses in this country would
probably work to your advantage in terms of salary, should you
decide to make good on that intention.
Something else I just found out too: there's an almost equally
serious shortage of dermatologists here. Tried getting my HMO to
make an appointment for me to see one, and the next available
opening they had was--get this--six months out!
There is a nursing shortage worldwide, and the US is paying
something like $30 / hr at least for RN's and the rates differ
according to the State.
The trouble is, there is a huuuuuuge backlog of Green Cards that
have not been issued to nurses who have fulfilled the criteria and
have obtaind the NCLEX licences to practice. I contacted the
US Nursing Agency I registered with when I was back in SG and they
are no longer accepting new applicants worldwide because there are
RN's who have waited FIVE years for their Green Cards and
still haven't heard anything.
Immigration is screwed up internationally. 
It's like you have an orchard full of fruits
waiting to be picked and meanwhile, starting to rot, but the fruit
gatherers are all barricaded out of the orchard, looking longingly
at the fruits...
