This is a view of the motherboard installed in the case. It is firmly held down with 12 or so screws and standoffs, rather than part standoffs and part plastic clips. Besides excellent EMI ramafications, it also means that the board won't warp or bend when cards, memory, or processor are being added or removed.
The EMI fittings on the back were a bear to line up and compress. This is also good from an EMI perspective.
This is a detail of the rear panel.
From top to bottom:
There were more connectors than the mobo could have mounted directly, so several are mounted on little sub-panels that fit in the card slots. This pic shows that.
Second panel from the bottom contains two firewire connectors. These are connected to the motherboard with independent harnesses each.
At the very bottom is the serial/game port panel. There is only one serial port available, although there are two headers on the motherboard. The yellow connector is the game port, for joysticks, though why anyone would get one of those instead of a nice USB joystick is beyond me.