Want cheap insurance? LIE!
Don't lie about your age. Tell 'em that you're married! Years ago, when I bought a Mustang GT, I had to get new insurance. After getting quotes that ranged from $1200/year to $2500/year, I decided to experiment. [I was 23 at the time...just had a birthday.] I told the insurance salesmen that I was married, and that my wife didn't drive. My quotes were waaay less. I ended up getting insurance from State Farm for $900/year. When they asked for my "wife's" name, I gave my girlfirend's first name with my last name. No problem whatsoever!
I don't know if this will still work, but I think it's worth a shot.
Mike