Sources on the French Romantics and the bouzingos?

[tenlittlebullets]

Okay, I'm long past the point where I should be reading actual bios of these wonderful totally insane people, and as it so happens I've got an e-reader and a couple of 12-hour bus rides coming up. (*furtively avoids looking at the half-dozen books I'm currently in the middle of*) Any recommendations? Public domain or cheaply available preferred, Google Books ok, can read English, French, or (very badly and painfully) German. Particularly interested in Nerval, but really, any books you'd recommend on either of the Cénacles and the people in them, throw 'em at me.