Where to buy cheap auto insurance?

Im 19 years old and I have had my license for about a year. I have no speeding tickets and have never been in a wreck. My driving record is picture perfect. I have been driving my moms car and she has had me under her insurance so it was really cheap. But Im getting ready to buy an 06' Chevy Colbat and where I am buying it off a car lot, she cant afford to put me under her name on insurance, becuase I will have to get full coverage as where as before I had liability. Is there a place in WV or somewhere online that offers reasonable prices on full coverage insurance for someone of my age. My mom is telling me my insurance is going to be about as much as my car payment. Is there any way to get it lower? I need a cheap place for insurance! Thnks.