Alan Rigby and Jeff Nicholls have supplied the pics for this post (15th June 2010) and both pics are of particular interest.
Both of Alan's pics are of the same train. The first shows the leading locomotive - a class 47, 47714, in Anglia livery - heading a DVT, a First Great Western liveried coach followed by unbranded Virgin livery stock. On the tail, and the subject of Alan's second shot, is class 47, 47818, in One livery from East Anglia. One livery was changed in 2007 to National Express East Anglia. What an interesting train, which was photographed on 29th April 2006.
Jeffs pic is the first vignetted example on the blog but I don't know the details of how it was taken. EWS (DBS) class 37, 37401, is pictured heading cargo vans northbound. The pic is dated 5th August 2009 and it was taken from the Hospital side of the line before the balustrade fencing was erected.