I don't think my PC would count (since it is basically an empty case with a few random parts that haven't blown up
). I don't have a gaming machine right now, and won't until VG is released. I do currently have a 23" Apple Cinema Display, but since it isn't displaying anything, not very leet.
Probably the coolest two items I have in my gaming room are a 4 foot Master Chief statue signed by the Bungie team... I got it from the Hurricane Katrina relief auction that they were doing. It is pretty darn cool.
And then I also have a framed set of EverQuest lithographs signed by Keith Parkinson from the box arts of EverQuest, Ruins of Kunark, and Scars of Velious, and a signed EQII movie-style poster signed by the EverQuest II dev team.
Not technologically leet, but geek leet regardless.