This thread probably wouldn't have started if the OP had just got out the Yellow Pages, used google and used all the compare sites and used the forum search function for insurance company names/recommendations [loads of insurance threads on here all recommended the same handful of companies] and went and got as many insurance quotes as possible - this would have gotten him the answer he was looking for - that he can either get insurance for £4000 or insurance for less. Just being lazy imo.
But then how would he have communicated to the entire forum nay the whole world the fact he was going to buy an SL 350?
The point of the thread was to tell us all about his dream, not in fact to get assistance with insurance. Any bafoon can shop car insurance around.