Probably like my room, but to a bigger extreme.
Basically I have my tv and 3 game consoles on the shelves below it. Then I have a media shelf which has all my games/movies. But above that I have hanging shelves Which have some games on them, game memorabilia, but also autographed baseballs, some signed basketball items (not balls but bobble heads and the like) Got some of my lego star wars sets hanging on those shelves as well.
FWIW: I have tons of Nintendo game franchise posters from Club Nintendo. That I'll frame and hang up around my apartment when I move out in the fall, same with my autographed jerseys and that will really throw people off.