The Dark Knight Returns - III've read that. I remember the camp crusader actually killed someone. With a fuckoff great gun it was. Also, the dude nearly killed Superman, and there was a comedy cameo from Ronald Reagan.
The art was a bit rubbish, though. I didn't like the whole thing, that much, to be honest. It's Batman whatever way you look at it innit?
Still, be interesting to see the new one.
P.S. I also remember the back of the book had a photo of Frank Miller. He had a right twatty hairstyle!