He's in the uk, that board(UD3H) is like more 40 pounds and not worth it, the asrock z77 also more than 100 pounds.
And one more thing, the D3H has two pcie lanes 3.0 with an ivybridge cpu, when in dual mode it is at 8x 8x
1 x PCI Express x16 slot, running at x16 (PCIEX16)
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
This is the slot closest to the CPU.
1 x PCI Express x16 slot, running at x8 (PCIEX8)
* The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot is populated, the PCIEX16 slot will operate at up to x8 mode.
(The PCIEX16 and PCIEX8 slots conform to PCI Express 3.0 standard.)
* PCIE Gen.3 is dependent on CPU and expansion card compatibility.
This is the middle PCI Express slot.
1 x PCI Express x16 slot, running at x4 (PCIEX4)
* The PCIEX4 slot shares bandwidth with the PCIEX1_1/2/3 slots. The PCIEX1_1/2/3 slots slots will become unavailable when a PCIe x4 expansion card is installed.
This is the slot closest to the edge of the motherboard.