For the most part there's not much here that you don't already know about. Saying that, we do need to take a closer look at the expansion slot setup.
Outside of the single PCIe x1 slot, we've got five PCIe x16 slots. Of course, not all those slots run at x16 - PCI_E1 and PCI_E4 both support x16 when two cards are used. If you throw a third card into the mix PCI_E4 runs at x8 along with PCI_E6 which supports x8. As for PCI_E2 and PCI_E5, they support up to x1.