It's a big deal and it can be tough.
I would say if you can get contract / visa go work there first. Living and working somewhere is a whole different deal to visiting.
I have no regrets now but there have been what have i done moments along the way. Check out the local health care situation too - the national health service has been raped year on year but it's still free so get any dental work done too while you can.
Keep an eye on exchange rates too.