Sean, you have a beautiful rig there. I'm using an old "blackface" Intellifex in mine and I've been thinking about picking up the G-Force. My only reservations are that it also is a slightly aged piece and for another $400 I could be thinking about the Eventide Eclipse. Honestly I wouldn't be able to sleep at night knowing that my rig was set in a non-shockmount rack case, especially with the gear you have! The X2? I've heard nothing but great things about them and have the new XDS-Plus in my near term sights. Anyhow here's a link to a great case company. I purchased a two head-eight space from them with extra depth for a rack drawer, heavy duty locking casters and four side handles. They do excellent work!
http://www.crowncases.com/