Here are some examples of my 'not so neat' set up. Bear in mind I live in student accommodation and have limited space and limited control over 'modifications' i do to the room (such as cableling under floors, ceilings etc). So I make do with the best I can such as re using furnature thats provided here (which is why it looks crap)! When I move out, I'll update with neater pics!
As you can see, no fancy stand, can't ceiling mount my projector, so we just use the shelves that were provided. Not ideal but it does the job!
And yes - thats a core 360
Which produces a screen like such (playing link to the past on wii). Its around 105"
My girlfriend playing GH2. She is one of the best players of this game I have ever witnessed. She is sitting alot closer than normal for some reason, maybe something was going on behind....
Poker night with Gh2 in the background
And my computer set up, which is where I watch alot of movies and occassionally move my PS3 or 360 in to play some games
So there it is, not very neat, but when its a temp location I didn't bother really setting it up perfectly. Its great for gaming nights and film nights with all my flat mates. I am pretty sure they appreciate the set up too