Buddy, you can't get a Motherboard with two PCI-E 3.0 X16 slots at 5K. That is available with high end 10K+ Z77 Motherboards. All the sub 7K boards come with one PCI-E 3.0 X16 slot running at X16 speed and one PCI-E 2.0 X16 slot, running at X4 speed. One point, for utilizing PCI-E 3.0 bandwitdh, you need to use a Third Gen Intel Core series or Ivy Bridge Processor like i3 3220 or above. The PCI-E Controller is integrated inside the CPU die in case of Intel Processors and currently only Ivy Bridge series does have PCI-E 3.0 controller. So if any Sandy Bridge based CPU like i3 2100, i5 2400 is plugged into any of B75, H77 or Z77 chipset based Motherboard, then the PCI-E 3.0 X16 lane will operate at PCI-E 2.0 X16 speed.