ANNAPOLIS, Md. (AP) - Now that Wal-Mart is required under Maryland law to spend at least eight percent of its payroll for employee health benefits, some state lawmakers want smaller businesses to pay up, too. Legislation introduced Wednesday in Annapolis would require all businesses to spend 4.5 percent of their payrolls on health care for both full and part-time employees. As with the larger employer law, the money would either have to be use for company-provided insurance or paid to the state. The bill's sponsors says the 800,000 Marylanders without health insurance could benefit from the proposal. Small business owners...