I speak from the already left UK point of view. Ok, it has to be said that I was young & free when I did it. But I had no job to come to, no permanent address to come to, and very little in the way of money. But I would say this...
Many of the posts are spoken in reverse so to speak. My point being, that comments like "when I am financially sorted I'll be off" or when I have things in order I'm outta here" should read something like....
"I am making plans to emigrate cos that's what I really want to do - now let me look at how I am going to acheive my goal"
If you wait for X,Y, or Z to happen first, it is less likely to happen than if you you say "I'm doing it, so let's plan". And the moment you start putting barriers up, it just ain't gonna happen for you. So start taking down the barriers guys - you only live once. As far as we know.
Anyway, all the best Millwall.