Brad Seligman made millions early in his career at a small Oakland law firm -- so much money that it made him uncomfortable. That discomfort has transformed the former hippie into one of the country's most recognized class-action attorneys, taking on Wal-Mart Stores Inc., Costco Wholesale Corp. and other companies in lawsuits charging that employers discriminated against their female workers...Both firms deny a pattern of gender discrimination. [also refers to State Farm]