When i was 17 insurance TPFT cost me £1100 on a £1300 1.2 punto, which is just silly, but it meant i built up no claims and now im 22, my insurance is only £330 fully comp! (with the help of additional drivers and a family policy discount mind!) Just waiting for the same to happen ont he bike insurance, coming up to the end of my first years insurance, so hoping to get that under 500!
like someone else said, cheap doesnt exist as far as insurance for a young guy goes! just gotta stick it out until you can prove to them with your no claims really!