Isorski's Musings has a great post on some interviews with David Gilmore and Roger Waters done back in 2000. Here's a teaser, you can read the rest by checking out his site.
Now really. I thought I knew all there was to know about Floyd and its internal strife and the break with Roger Waters after The Final Cut. But in the interviews with Waters and especially Gilmour, I learned a lot. For example, the two were not really fighting during the recording of The Wall except for a couple of artistic arguments. It was really during the filming of the movie that things got bad.