I've been waiting for months and today it appeared: Alan Bennett's The Habit of Art. It's a play-within-a-play about W.H. Auden and Benjamin Britten, two men I admire but don't know as well as I'd like. And it's set in Oxford.
I loved Bennett's History Boys; Bennett's economic elegance and wry self-conscious Englishness makes me think of Auden (I just came across the phrase "lunefied landscape"). It's going to be hard not to justify buying this slim little book.