Building a High End HTPC featuring the Thermaltake Mozart Enclosure
 

The Mozart TX case can house two motherboards, a full ATX and a Mini ITX. Sold as optional components, you can add a 7” LCD monitor, and a mini ITX PSU to power the unit. The case does have a 7” drive bay to accommodate. Under the stabilization bar is where the standoffs for the mini ITX board are pre installed. Above the bar is where you systems PSU will mount.

http://www.overclockersclub.com/reviews/htpc_case/