Single payer:
Single-payer is a term used to describe a type of financing system. It refers to one entity acting as administrator, or “payer.” In the case of health care, a single-payer system would be setup such that one entity—a government run organization—would collect all health care fees, and pay out all health care costs. In the current US system, there are literally tens of thousands of different health care organizations—HMOs, billing agencies, etc. By having so many different payers of health care fees, there is an enormous amount of administrative waste generated in the system. (Just imagine how complex billing must be in a doctor’s office, when each insurance company requires a different form to be completed, has a different billing system, different billing contacts and phone numbers—it’s very confusing.) In a single-payer system, all hospitals, doctors, and other health care providers would bill one entity for their services. This alone reduces administrative waste greatly, and saves money, which can be used to provide care and insurance to those who currently don’t have it.
http://www.pnhp.org/facts/what-is-single-payerPublic Option:
For those who don’t have insurance provided by an employer, or for small businesses who want to buy a plan at an affordable rate, the bills would create a Health Exchange – a one-stop shopping market for health care. Any private insurance company could offer a plan in the Exchange, but they’d have to adhere to certain standards:
There would be a minimum set of benefits for all plans, no one could be turned down on the basis of pre-existing conditions.
There would be guaranteed renewal of policies (no dumping a customer because they got sick.)
You would not be charged a different price because of gender, health status or type of employment.
You would be charged a different rate for age, but it would be more restricted than the Wild West of premium rates today.
If you couldn’t afford the full premium and you made less than 400% of the federal poverty line (about $43,000 for an individual or $88,000 for a family of 4), you’d get a subsidy so your premium would be pegged to a fixed percentage of your income.
Everyone would have a cap on out-of-pocket expenses. And finally,
All of the information and presentation would be transparent -- you would be able to compare standard benefits across companies to find the one that works for you.
http://healthcare.change.org/blog/view/what_is_the_public_option