Humor aside, before you throw all sorts of stuff into the room ask yourself what you actually value and enjoy.
Take some time to look at other rooms people have put together and see how they did it.
Most importantly don't see the room as a completed project but a work in progress to be added to. In a word plan space for future additions.
Nothing is worse than a book case 100% filled, a wall 100% covered, or a gun safe with every space filled. I believe that at worse there should always be a spot for an addition or growth, so plan for it.
Try looking at Orvis, Stafford's, and Kevin's online for ideas (not necessarily buying from them, but getting inspired by them)
Also look at Safari Club International for ideas, especially their magazines, both articles and advertisers.
