Sporting Gold auctions (they have an online website and bidding platform) sometimes have good stuff. I believe the bloke that runs it is a blue.
I've bought good stuff off them before. http://www.sportingoldauctions.co.uk/
There was a football memorabilia shop just up from Pokesdown(?) station in Bournemouth on Saturday , had loads of signed and framed City stuff in and really reasonable prices , it was called summat like In off the far post - google it .Amate bought several signed pics , they wrapped them up and he picked them up after the match