I moved to Auckland (NZ) in 2007 with wife and two kids. It's pretty tough for many reasons. It takes a while to settle but we live in a nice area, near the beach, you can surf on uncrowded waves, drive to the ski field in winter (3 hrs from Auckland thou)- trails network isn't quite as hot as the UK, but pretty good all the same and the crime is very low compared to where we used to live. It's pretty much laid back compared to many cities in the UK, but it's tough to get work here as they prefer you to have 'kiwi experience' which is a nonsense really.
Now 2 1/2 years on we both have secure jobs and a reasonable income, the local schools are some of the best in the OECD and we have a network of friends, there's worse places to be I suppose. It's not for everyone but if we turned around and went back to the UK tomorrow i'd not have any regrets.
A country is the place you live bit a home can be anywhere and it's what you make of it. Limit the stress in your life and everything else will hopefully fall into place, you may not have to leave the country to find that, just a change of job, city…… The distance from support/family if you emigrate may add a new stress of it's own, something to take into account.
I like it here in many ways, we may not stay here, we may go somewhere else eventually (I love France) but we're here for the kids and the opportunities that are more prevalent here (some will disagree on this I know) but we have more time for them here in an environment that I feel is more in line with my expectations for them.
Good luck!