I need a full coverage and I would like the cheapest quote

There are tons of companies out there and it would take forever to request a quote with all of them.

Insurance brokers find quotes with lost of insurance companies for you. They run your info through many insurance companies and bring back the best results for you. You can just type in INSURANCE BROKER , (your city) in yahoo and the companies around you will come up

One down side are broker fees. Some ins brokers charge and some don't. Just make sure you look around and don't go with the first one you come across.