+1 for Photoguard, I've recently insured all my gear with them. I got £8000 cover, travelling, new for old all with only a £250 voluntary excess for less than £250 for the year. Obviously, it depends on what value your gear is and what cover specifics you require. As others have said, they need your serial numbers for major items but you can lump together all the items that dont have a serial and put a total value on it too.