I get mine from MESSA, which is the Michigan public school employees' health care network. It is basically Blue Cross Blue Shield. I pay a little extra every paycheck for whatever their "premium" package is, but it's worth it because we spend a LOT on health care for how old we are due to my DH's gastrointestinal disease. He is on a lot of meds.
I have vision and dental, and my co-pay for any doctors' visits (including to the emergency room) is $15. My DH was in the hospital for three weeks this summer, and between his health insurance and mine (he's on both), we had to pay about $30.
I'm not sure if this helps... but hopefully it gives you some sort of idea. What plans are available to purchase through your workplace?