Will ANYONE insure my phone...?!!!?

OK - if anyone can solve this little conundrum, I will be eternally grateful.

I need to insure an iphone 4 and a Nokia X6... and I need the insurer(s) to do the following:

*Cover phones of up to £600 in value
*Insure against loss
*Not require proof of purchase, even if it can be proven that the phone is under 6 months old (i.e. if another insurer provided a replacement)
*Insure against theft, regardless of whether or not force or threat of force has been used
*Have a REASONABLE excess - i.e. not simply £100 because it's within the first few months of the claim
*Not demand payment of an annual premium in full, just to be able to have a claim authorised
*Preferably NOT be restricted to only one claim per year

I have spent HOURS trying to get these frickin' phones insured and I'm thinking the best option at this stage (if it even IS an option) is to get them tagged onto the home contents policy, phone insurance policy that might have the answer, but unless anyone can tell me otherwise, I'm reluctant to believe it!!

PLEASE HELP!!!!!

Thanks