I wouldn't move to the UK; no gun rights! Not to mention, why would you want to live in such a big brother society in which the government feels the need to involve itself so heavily within your everyday life? What with the cameras, the harassment of non-whites by immigration officials, restrictions on freedom of speech, etc.
If you want to live in a community with a heavy Muslim presence, simply move up to Dearborn, Michigan. Granted it is Detroit (barf!), but at least Dearborn does have a large Muslim community.