The key to saving money on insurance is to shop around and get as many quotes as possible. This is especially true when purchasing auto insurance. I recently read one article that insurance rates for the exact same coverage can vary several hundred dollars. Consumer activist Clark Howard suggests shopping at least ten insurance companies before purchasing. There are some great resources online to make this process easier.
Get a quote from a broker - brokers provide a good service in that they try to get you a competitive quote and get a small commission in return.
Here's a good place to start: www.insurancepaylite.com