source for posters and photographs of musicians

does anyone know where one could buy high quality posters or large photos of musicians. I am hoping to find poster size photos of some of my favorite musicians/bands to frame and hang on the wall of my listening room: bb king, miles davis, allman brothers/fillmore east etc. also I was wondering if anyone has incorporated pictures/paintings with acoustical wall panels.(of course glass over the picture/photos would not work) thanks