Thanks. After the neuron-scorching I've suffered online, I'm totes ready to go dead-tree format for a while. So... where to find said tomes...? Amazon of course.
Medical section, back of the basement, Blackwell's, Broad Street, Oxford.
I recommend Blackwell's purely because it's the only bookshop I know of with a fully fledged pub in the middle of it.
The basement at Blackwell's:
The pub in the middle of the shop:
The bookshop actually extends around under and behind the pub. That's a very old photo (2.8i Ford Capri with vinyl roof - must be the 70s) but it shows it better than any more modern photos I could find. The White Horse has now lost its 70s look and looks like a proper British pub again, Blackwell's hasn't changed at all. Walk about 100 yards to the left of the photo and you can see where Latimer and Ridley were burned at the stake in 1554.
Suck on that Barnes and Noble with your little in-store Starbuckses!