I don't find the insurance too bad, but I guess it's all down to your age, area you live, years experience, ncd etc.
My wife and I do a multi car policy with Admiral, she has a 2002 focus 1.8tdci ghia and I have a 2007 5Dr Focus ST. We are both named drivers on each others policy, both do about 10k a year, my St is modified, both cars are kept on the road and we have kids (which actually makes your insurance more expensive). I'm 35 and she is 34.
Just renewed our policy for £491 for both cars. Would've been cheaper had I not added extras to the policy.