This is a nice wee sie dedicated to reproducing the diaries and memoirs of Peter Kidner who served from 1939 to the end of the war. His Dunkirk experiences, where he was in support of 3rd Inf Div are interesting, haven't read the rest yet but it's worth a look.... http://simonkidner.co.uk/pwek/pwek.html
Yes, I stumbled across this site, too, and forwarded the address to a friend whose grandfather was in one of the other R.E. field coys of 3 Inf Div. I haven't looked at his later diaries, but the BEF section has some useful snippets and is quite interesting.