What should I get for my room?

I have a sports theme in my bedroom, and I want to know what to decorate it with. I have a framed Brett Favre jersey, shelves with my trophies, a photo of Peyton Manning's record breaking touchdown throw, and a picture of Team Canada winning gold at the 2006 Salt Lake City Olympics. Although this may sound like a lot, it's actually not, and I still have quite a bit of room for little things, like pictures and things like that. Any ideas? Even if it's not sports related, as long as it's cool, please tell!