BTW, I'm buying this for a home-built fileserver. AMD's I/O architecture is so much better for this than Intel's socket-1155/1156 CPUs, plus AMD Phenom II CPUs support ECC memory! It would cost me far more to build an Intel system with ECC and nearly this many PCIe lanes.
AMD may not have the fastest CPUs, but this thing has server-grade I/O and ECC memory. It's the perfect thing for home servers!
Edit: I have just discovered that ASRock doesn't support ECC memory in their Deluxe3 or Deluxe4 boards. I'll wait and see what they say about the Deluxe5, but it looks like I might be buying an ASUS. Which is unfortunate, because ASUS's boards have fewer PCIe slots and SATA ports. And I might have to waste one of the PCIe slots it does have by adding a SATA card, if I don't use an IDE boot drive.