I want a Commodore 64, just so I know what some of the first geeks felt like.
I have one too, somewhere in my attic... unless one of my brother's stole it! Ah, I remember playing on that, even though I was tinie tiny when we used it. We did manage to get it to work a couple of years ago though which was fantastic. And I have Rampage for the Wii now, which has the old versions on it!
Now my geeky/slightly strange desires...
Whenever I get one book of a series I always want to buy the rest, just to have the whole series on my bookcase. If there's one missing I have to get it!
And I would love to be in one of those great iconic films, Star Wars for example, or anything that people years later still love. Not even acting in it, but just to be a part of it. I want to be part of something great!! (But then I guess most people do...)