I am with Imaging Insurance. I originally got a recommendation but decided to phone around anyway. They were the cheapest for me just over a year ago (I didn't bother ringing around again for renewal).
Any item valued over £1500 has to be listed with s/n, otherwise they just ask for a total figure. Public liability insurance is very reasonable, and they automatically cover you for up to 60 days abroad each year.
Luckily I haven't had to make a claim, but I can honestly say they are one of the few companies I don't mind calling to speak to their customer services. Extremely helpful and very polite.
Clicky for their site![]()