as a United Kingdom resident you are not eligible to apply for a greencard through the lottery system
to live permanently in the USA you therefore have to be:
married to a US citizen or be the parent or child of a US citizen
you can apply as a child (over 21) /brother/sister of a US citizen
or
you have to have an employment visa - which means you need to come within one of the following categories:
irst Preference Category - Priority Workers - Persons of extraordinary ability in the sciences, education, arts, business or athletics: outstanding professors and researchers & certain multinational executives & managers.
Second Preference Category - Members of "The Professions", Persons with exceptional ability in the sciences, arts and business - Defined as a member of the professions holding an advanced degree or equivalent, or baccalaureate degree plus at least 5 years of progressive experience in the specialty, and persons of exceptional ability in the sciences, arts and business.
Third Preference Category - Professionals - A person who holds a baccalaureate degree and who is a member of the professions and Skilled and Unskilled Workers - Skilled workers with at least two years training or experience and unskilled workers whose skills are in short supply in the U.S. Note: The Embassy does not keep a list of these professions.
Fourth Preference Category - Special immigrants including Religious Workers.
Fifth Preference Category - Investor visas - Investors may qualify for employment creation immigrant visas if they seek to enter the United States for the purpose of establishing a new commercial enterprise.
all the details are here
http://london.usembassy.gov/immigrant-visas.html
The chances are, like the rest of us, you'll be unlikely to be able to move permanently to the USA

sorry!