One of the highlights of GamesDay 2009 for me was the fantastic Ork Shanty Town display that Forge World did. There were many of the new Forge World models including the excellent Ork Big Trakk. A turbine powered Ork tracked vehicle with twin Big Shootas.
I really like this model, which combined with Trukks and Halftrakks gives the Orks a variety of vehicles that you would expect to find in their forces.