I bought the crystal case from seidio, but so much dust would accumulate that I would end up taking it apart to dust it at least once a week if not more. I ended up finding other Mogul cases here, and they were cheaper that the Crystal case and more options to choose from. I bought the carbon fiber one at the bottom of the screen of the link below. They have all kinds of things for this phone.
http://www.daydeal.com/home.php?cat=3069