I was talking to a mate about photography and he was asking about the 55-200mm lens I'd used on some of my flickr photos. I did a quick check on amazon for the Canon fit for his lens and noticed they were knocking them out for about £120. Hmm. Checked the Nikon fit, same price.
Suggested to K that I'll put the asda card towards the grocery shop in return for cash, then I can complete my lens setup.