I would not do that if Im in your shoes -if you already got the PERMANENT RESIDENCY or UK citizenship you might have a go at USA but if you dont then you will loose what you have and "jump" into unknown in the USA which is doing bad at the moment -you have family which is alos a burden -you haveto spend lost of money basicly to start all over again with additional burden -this is not wise -you are not young or single -GC lottery is for PEOPLE who does not have much to loose -they are say young ,single and willing to take a risk or they have some business which culd flourish in the US (some bright idea or already working for US company ) or even older people who did not achive much in their countrys due to unstable political situation (like my country ) ;but to change the country just for the sake of it and plus to drag your familiy to it -in the US its hard life -very hard this is not EU ; in the US you are safe if you are milioner but if you are average guy then its always a danger to go bust (lose a house ,a job,health and NOBODY WILL HELP -no govermant no nothing -law is on the side of the big companys etc.) my country is for example poor an its trying to join EU in then next 6 years (hope it would even sooner) but here this which happened in the US (motgage crisis ) can not repeat itself -if you say fail to pay your mortgage court wont kick you out from your house -specialy if you have family -they would force the bank to re-programe the debt for you;my advice is dont do it -you will loose your time and money for nothing unless you have a job offer already (which I doubt)
Thanks Kolja for your advice.
Which state are/were you living in the US? I will be happy to get detail info about the situation of that state, and also the role or impact of educational qualification in one settling quickly and well in the states.