Marcus N - I was going to advise Cavendish Street in Peterborough too, although I find them a little expensive atleast they are there to go and fetch stuff from in an emergency.
Also I have had quite a few calls from around the Holbeach area recently, give me a call on Monday for a chat and give me your number, I will pass all enquireis from suitable areas on to you.
My number is 07747 624097
Cheers
Marc