In agree with everything bonmanp said about Roger Waters. To borrow a line from another commenter on a different site, Waters is is just another pr__k in the wall. I enjoy all of PF's later albums but my favorite is still Wish You were Here, whether over-hyped or not.
Psychologist dissects Pink Floyd's 'Dark Side of the Moon'
I never get tired of learning more about this seminal work by one of my favorite artists of all time.