Get the MSI B75MA-P45 motherboard for $70. It has 4 memory slots, a PCIe 3.0 x16 slot in order not to bottleneck your video card, and it's non-overclockable w/a B75 chipset.
ok i'll look into that but just one question:
there are two other options i found for the b75 series,
msi b75ma-e33 for 89$
msi b75A-g43 for 108$
the prices are higher than they should be in the US btw