Mine also shows two 'bcom5714' interfaces in the GIGE slot, despite the airport card reporting as a BCM43xx. I suspect these are the two gigabit ethernet ports built-in to the late 2005 models (possibly adapted from the same parts Apple used for the older PCI-X gigabit ethernet add-in cards.) The Bluetooth on mine is definitely a USB device.
(PCIe Slot 3 and 4 are an AJA Kona 3 and Apple Fibre Channel Card, which also account for the '7x4' and 'dxc' slots.)
Doesnt matter what the yoke connector is and if its compatible
ALL The CRTs are interchangeable between ALL the B&W compact macs. Its just a matter of swapping the yoke between the tubes and retuning any geometry.