BUILDING THE SYSTEM
The goal of this section is not to build a working system and test it to see what kind of temperatures you can expect from it (too many variables and empty fan spots) but to showcase what you can expect in terms of interior space.
It may be a long shot but you should be able to mount an E-ATX factor mainboard inside the GAME ONE.
There's also plenty of space for large CPU Coolers such as the Zalman CNPS9900 MAX (check for clearance issues if you plan to mount a side fan as well).
The Gainward 9800GT Green is no match for the GAME ONE since you can install cards up to 266mm long.
It's good to see that you can mount even the longest PSU on the bottom without covering the lowest cable management hole.