I'm under my wife's health insurance, but otherwise I would be paying out of pocket. Here are a few suggestions:

1) Individual health insurance. Try http://www.ehealthinsurance.com or http://www.integra-insurance.com

2) Group insurance via a professional association. For example, IEEE: http://www.personal-plans.com/product/ieeeinsurance/ It's quite expensive, but the coverage is excellent

3) If you're incorporated or LLC, you might be able to get a small-business plan through Costco or some other provider