New Jersey has the most millionaire households in the country, according to a marketing company's fifth annual ranking. The Garden State moved up from No. 2 in 2005 and 2006 to No. 1 last year on the index, compiled by Phoenix Affluent Marketing Service, which does research for companies that sell luxury products, investments and the like to the wealthy. According to the service, in 2007, 7.12 percent of New Jersey's 3.2 million households had a total of $1 million or more liquid or investable assets. That includes items such as savings, stocks and bonds, precious metals, the cash value...