New LNE Video, and better pictures
I had a significant number of requests for more information on my LEGO PackBot implementation, so I pulled together some more information. First, I took it all apart and documented the process with a series of 15 images ("lnebuild1" through "lnebuild15" in my Brickshelf Folder). Take a close look (in one step, pieces apparently change color; it's just something I did to highlight the pins you needed to pull), and you might be able to reproduce it. You will need at least one extra studless turntable and six of the new treads, plus I'm sure other studless pieces. In rebuilding it I was able to reinforce the structure some more, add the US sensor and a HiTechnic accelerometer, as well as place the minifig driver in a much safer spot.
I also put together a better video of unit LNE in action, (embedded below, hopefully) showing it climbing slopes, crossing gaps, "swimming" in packing peanuts, etc... as well as a couple more "interesting" activities. Let me know what you thought of the video - I've not edited together a lot of videos like this, so be gentle :-).