My {former} local branch of Jessops in Salisbury did bother to stock film and darkroom products-not a great selection of paper and chemistry but at least they did keep 5x4 Ilford b+w film in stock and try to employ staff other than spotty youths:you know the sort, like the one who works at the drivethru burger place in the Simpsons. Stargazer-haven't been in the New Oxford St branch for a couple of years or so but they did keep a good selection of stuff there and employ some reasonably knowledgeable staff who weren't all like the Simpsons guy.