The most impressive mod at the Thermaltake booth is this Paul Walker tribute by Suchao Prowphong called the Core X 2 Furious Mod. The designer says he loved the Fast and Furious movie and misses the actor.
You'll note that it's actually two PCs in one gigantic case.
InWin's cases were pretty epic and this one opens up like a flower to showcase the hardware inside. It should also help with troubleshooting and cleaning, since dust is likely to get inside easier due to its open nature.