Manchester and Liverpool were different, though. With much of the once thriving industry in ruins both cities were in a state of decay sort of when I was there.
It may have been possible that were still fixing up the place after the IRA blew it up.
http://www.youtube.com/watch?v=_4EoXH1ju_0&feature=relatedAlso there are currently some pretty bad racial tensions (with a long historical undercurrent) in Northern England especially where traditional working class areas have seen their communities allowed to decay into an underclass (with the introduction of US style free market capitalism from Southern England esp the London financial centre, although Leeds has a large financial centre as well even though it is bankrupt (just like the Edinburgh financial centre) and needed taxpayers money to prop the whole system up) with the far right neofascists getting a foothold in local and national politics i.e. getting elected for the first time. (the BNP policies include repatriation of non white races and they also want to implement the Castle laws and free up gun ownership) The 2005 London tube suicide bombers who apparently were Al Qaeda terrorists came from Leeds.
But perhaps the most shocking lifestyle change would most likely be the shock of actually having to pay direct taxation although National Health Care services are a major plus (depending of course what income taxation band your in).
As for the criminal/under class being a problem in England and the UK, that probably wouldn't be much of a problem since the Caymen Islands is essentially a criminal operation in its own right (these criminals, er I mean free market capitalists who don't have their accounts audited for their pharmaceutical distribution operations in Liverpool, London, Manchester, Los Angeles, Philadelphia etc, know what Port to have with their lamb cutlets).
The Harrogate and Knaresborough areas to the north of Leeds may as well be a million miles away from the deprivation of the inner cities of Liverpool and Manchester. But that is just the way it is nowadays.
Moving to Northern England in the midst of a bad economic recession from the sunny climbs of the Carribean despite the Hurricanes would probably not be a very good move but that would depend a lot on empolyment income. Being wealthy in the UK is'nt going to be as good as being wealthy in the US, but being poor isn't going to as bad either although the politicians in the England have for the last 30 years have tried their damnedest to encourage the wealth gap between rich and poor.