The entertainment center keeps all the wires and shit neatly out of view.
The coolest thing in my bedroom is an Italian Godfather poster. Part of a gangster motif, along one wall runs that one, Goodfellas, Scarface (not the white and black one), Casino and Bonnie and Clyde posters. I also have a Japanese Seven Samuri poster, which is cool too. Rounding out the posters is Dawn of the Dead, Evil Dead, Halloween, Nightmare on Elm Street and Friday the 13th. I think the posters are what really ties it together.
Oh, those are all in frames. What drives me crazy is posters just tacked or taped up. I think it's my ocd, but I can't deal with it.