I went to the antique shop today but couldn't spend to long. I thought I hadn't found anything, then, right as I was about to leave, I looked at a shelf and found this:

I'm sure some of you guys are familiar with it. It's very awesome, it's got the shooting script, concept art, all the posters, and spin-off cartoons and fan art. It's a true gem, and I got it for only $9, which is pretty good I think considering it's a first edition hardcover (though it's missing its sleeve).

All in all, a very exciting purchase.