I have a family policy, so not sure how it would compare to a single. I pay $288/month, but my employer kicks in over $20,000 annually to pay the balance of the cost of the policy. I have pretty good coverage- $500 deductible, 10% coinsurance, and $1500 out of pocket max, I think. Rx is separate out of pocket max, with a tiered formula.
This is a great source for averages and ranges of employer sponsored health insurance costs, types, how premiums are split between employee and employer, etc.