Is there a modern book on Gödel's incompleteness theorems that goes into each and every technical aspect of the proof of them (a classical one, if such exists)? I'm not interested in popular literature that constantly draws analogies with computers, printers, etc. I want the real thing.
P.S. I also started reading Gödel's 1931 original paper, but thought that since then the proof could have become more elegant and simple.