I've been buying Meat from James Lally for 15 years, he was one of the first people to offer dry aged beef, one of the first to source from "Named" farms who could tell you where the product was actually from and when it was killed.
All this way before it became fashionable. From my perspective if I need to guarantee a good result or impress someone with a meal - I go to James first. But don't take my word for it, his rib was a regular appearance at a well known Michelin Starred restaurant for many years !
Without a doubt some of the best meat I have found around London, in the most unlikely of locations.