hi, good luck with it all we really hope it all works out for you. we are at the same point as you having finally made the decision and now just about to start the paper work.
we are going for the 189 as Helen's job is on the skills list, we thought of sponsorship via a job and company but after speaking to a friend who is already there we decided not to, here's why we went for the 189 option.
the friend's partner is over there on an employer sponsored visa and the job recently fell through for some reason ending his visa and giving him only 28 days to find another work sponsor or else!!!!!!!!!!!!
PLEASE NOTE WE DO NOT KNOW HOW ACCURATE THIS IS, so you will have to verify this pit fall for your self's.
we have 2 young children ourselves and cant think of any thing worse than our little family being in that situation so we thought we'd give you a heads up on it.
probably best to just post the question on here and get some feedback seems like a really great helpful bunch of peeps.
good luck
rob & helen