When I was living in NYC a few years ago, it ran from $8-17/hr, depending on which company and type of work done, such as transports with a private company or either working FDNY/EMS or working the 911 system with a hospital. Where I currently reside in rural KY, it varies...it ranges from minimum wage (yes, you heard right, folks!) to about $8.75/hr. Money can be made with tons of OT on a regular basis, but you have to find the right service willing to dish out the OT-if you're willing to work it.
As Mikey said, get your medic. I plan on heeding that advice.
Personally, I think people like pro baseball and football players should be making our salaries and WE should be making $27 million per year.