The best company I have ever used with insurance has to be elephant.co.uk, if you ignore there diabolical adverts on T.V and get a quote you will be suprised. I have a Saxo Vtr at the minute, I am 24 and have 3 years no claims bonus. I am buying a FRS on Saturday and they quoted me £54 on top of what I paid for the year on the Saxo (about £515.00) I only have 2 months left on insurance though.
For the FRS (no mods) I am looking at about £650 but that is paying for the year in full, they do a monthly DD but its a bit more expensive.
BUT I am going to be at that magical age of 25 where insurance drops...................Lets see!

GENERAL TIP:

Add a female driver to your named drivers (I have put my mums name on there and she has an SP30 and it reduces my insurance by £230.00!!!)