If you're only including 2 cards in SLI/Crossfire (which at this point should be Crossfire, as ATI is killing nVidia), then either board would work. The only difference is the speed of the 3rd PCIe slot, and the deluxe has 2 extra SATA ports and 2 extra USB ports. I don't relaly think that's worth the extra cash.
RAM should be 1333 mhz CL 7. This will run $100. There isn't a noticeable difference between 1333 vs. 1600 in most cases, so save a little money.