Got out my Amused To Death again this week - still sounds wonderful.
DSOTM came out when I was in high school in the UK and over dosed on it over the years to the extent that I can't listen to it any more, The Flyodian Propulsion Project is a lot of fun:
http://www.floydhead.com/My favorite PF, and I believe to be the most underestimated, album has to be Animals - which has Roger Waters style all over it.