Piper at the Gate of Dawn is one of the most underrated Pink Floyd album. And Darkside of the Moon is a great one as well too. My friend's band cover some Pink Floyd songs soon after Richard Wright's pass away. I remember that they told me about it when I went see them play live at the evening music like a couple weeks ago.
I found one of the video my friend band cover a Pink Floyd song if you wanna watch it. I will send you the link for the video. The sounds in the video is really loud so just letting you know.lol
YouTube - Sun Domingo, 2008-06-21 (06) "Time" (Sweetwater--Duluth GA)