Since this obsession took hold I've been putting together a tidy little library, and of course a wish list, on tube-y and london-ey books for research and entertainment.  I've just gone crazy with the debit card on Amazon and ordered a pile of joyously obscure Situationist texts to remind myself that I used to be a grad student and read that sort of stuff for fun. 

Tubewhore's Amazon wishlist is here:

http://www.amazon.co.uk/gp/registry/registry.html/026-1131302-8706006 

...and I would welcome additional suggestions for texts of interest to track down...I can never feel guilty about buying books.