The sentence "No skills reqiured to live here", above, is far from accurate. UK citizens (without immmediate family members already living in the USA) can only emigrate to the USA if they can meet the relevant criteria, many of which are employment based.
'Skilled workers with at least two years training or experience' are considered for a resident's visa but it's likely that you would need a firm offer of employment before the visa would be granted.
Unskilled workers can normally only be considered for residential status if the applicant has a firm offer of employment in a sector where workers are in short supply in the USA. However, if you became a 'Lawful Permanent Resident', your wife would be eligible for the 'family based immigration' scheme.
See here:
http://www.usembassy.org.uk/cons_new/visa/iv/i ndex.html
Chris