Ian "In England many of the US titles above have a lot less weight; just as 'Streets of London' and 'Dirty Old Town' might have little weight in the US. But I would consider these two essential for a general non folk audience in England."

Really? I doubt if they'd carry much weight in my neck of the woods, or that any of my non-folkie friends would even know or remember Dirty Old Town, since these are both throwbacks to the 1970's. I wonder if these things depend on whereabouts in the UK you are ...