LOS ANGELES (Reuters) - California regulators were poised on Wednesday to adopt the nation's first mandatory energy efficiency rules for computers and monitors - devices that account for 3 percent of home electric bills and 7 percent of commercial power costs in the state. The state Energy Commission said that when fully implemented, the plan will save consumers $373 million a year and conserve as much electricity annually as it takes to power all San Francisco's homes. Final approval of the standards, expected at a meeting in Sacramento of the five-member commission, caps a nearly two-year planning process that had...