Basically $100-200/mo for very basic individual coverage with high deductibles, $400-500 for pretty full coverage with low to no deductibles, $800-900 for a small family, and 1200-1400 for a family on cobra/high risk type coverage (preexisting conditions). Shave a few bucks off if you're in your 20's or 30's, and add some bucks if you're in your 50's.
Be fearful when others are greedy, and greedy when others are fearful. Just another form of "buy low, sell high" for those who have trouble with things. This rule is not universal. Do not buy a 1973 Pinto because everyone else is afraid of it.