Individual health insurance is EXTREMELY expensive in the US. Most people use whatever is on offer from their employer - and failing that, try to get into any sort of a group plan. Group plans are sometimes available through professional associations, unions or other groupings of small business people.

Look into HMOs such as Kaiser Permanente (I think they are in Florida these days). They offered decent service back when I had them in California, but you hear lots of complaints about HMOs and the HMO style of health care nowadays. There is also something called a PPO. In both, you are limited to using "their" affiliated doctors, but it could save a bit on the monthly premiums.

The "standard" option is Blue Cross, but even their rates are pretty high for individuals. They might be able to provide some information about group policies through professional associations.

What is often recommended is to start one of those Health Savings Accounts (HSA), where you cover the first $2500 of medical costs yourself with money you have put aside (and deducted from your income taxes). There is special health coverage to go with this sort of a plan - and it's often cheaper than standard coverage (because of the high deductible). The insurance companies may not mention that to you if you don't ask about it specifically.
Cheers,
Bev