I've got a bunch of stuff on the walls of my studio at school, mostly framed posters of Miles, Dizzy, Monk, Trane, Bird and Duke, plus the Great Day in Harlem poster and a mounted copy of Sonny's Way Out West record cover. I've gotten quite a few things over the years from Allposters.com- I usually wait until they have sales. They have some nice gig posters for Miles, Duke, Pops, Basie, Trane etc. I'm surrounded by the cats!
I also picked up one of those 7" books of Blue Note covers and covered my office door with them. Quite a conversation piece.
Some nice stuff y'all have!