What kind of insurance are you looking at? I got mine on the household insurance (DIrect Line) at the mo - which if I remember cost about £5 extra a month. That covers accidental damage away from the house too. You have to specify it as a separate single item as it's over £1500.
If you want more comprehensive insurance then look at something like photoguard which comes out at about £11 a month, rising to £16 if you want in vehicle cover.
yeah im looking for insurance for the camera while in the field, ive been paying public liability for years (last one was £68 for a year minus underwater and aerial) but while working for production companies, ill try photogaurd and let you know