After "Trainspotting" and "Porno", Irvine Welsh has taken all his notes about all the characters he'd made while writing both books and has written a new book called "Skag Boys". It's about the boys in the books, Renton, Sick Boy, Spud and Begbie and everyone else and Edinborough's addicition to heroin, and their descent into it in Thatcher's 80's. There wasn't much else but booze and fighting. It's almost like Detroit. But a great read, if you like Welsh.
Have you read any David Peace? He has the whole Welsh stream-of-consciousness type prose and nasty, dark edge, except his stories take place mainly in Yorkshire and have a James Ellroy-like plot-driven focus on crime, murder, corruption, etc