I just picked up a titanium Investigator pen in a trade. I was waiting for the aluminum one because the ti version was/is out of my price range. Rick nailed the design with this one! The Exteme Duty was always a little too long and fat for my liking, but definitely a tank feel to it. The Investigator is small, thin, and perfect for EDC. It would go nice on a key chain too. It is even modular! Here is a pic:
