Florida insurance regulators unveiled for the first time Wednesday the prices proposed by private insurers for individual health plans to be sold on the state's federally-run exchange, which is scheduled to launch Oct. 1. But the proposed health plans and prices — and the state's analysis that federal healthcare reform would cause premiums to rise — were hardly definitive of the actual costs that Floridians are likely to pay for health insurance next year. That's because the U.S. Department of Health and Human Services has yet to approve the proposed health plans for Florida's exchange, and those plans, including the prices, may change as they have in other states.