I've got a Moneual 972 case, and it was a total waste of money.
At the time, I thought the additional LCD screen for status information and that sort of thing would be nice. While that ended up being true, the secondary display turned out to be more trouble than it was worth, causing resolution changes when turning off the TV, issues with the third-party stereoscopic drivers for AMD, and a few other things.
Not only that, but the included iMon remote receiver doesn't work with 100% compatibility for Media Center (it's close, but there's a bunch of important / annoying differences), so I ripped out the internal IR and replaced it with an internal IR that uses the built in support. That won't affect you for gaming, but still, something else that annoys me about it.
I still like the design of the case, but I could've gotten something just as nice for much cheaper, without the hassle of the LCD display.