I have a bit of a conundrum. I'm all set on building a new Intel-based system within the next couple of months. Was holding out for Ivy Bridge to come along first. However... As some of you probably already know I favour ECC memory for my builds. With my current system that wasn't much of an issue since the memory controller still was in the chipset. All I had to do was to get something X38/X48-based and I was set. Things have gotten a lot more complicated since as the memory controller has moved to the CPU itself. Great thing, if, like AMD, you equip all your CPUs (as of K8) with ECC capability. Intel, however, is into market segmentation, so to get ECC I need to go Xeon. Which now leaves me with the following (current) choices. I can easily buy an Ivy Bridge Xeon (E3-1200v2 family), but I'm kind of limited to _one_ board, the ASUS P8C WS, the successor to the P8B WS, which apparently has a bit of a spotty track record according to reports on the net. _OR_ I can get one of several X79/C600 boards, but that limits me to exactly _one_ CPU, namely the secret and elusive Sandy Bridge-E-based E5-1620, which is pretty much identical to an i7-3820 with a few more bits enabled, but is only available as an OEM option (read not boxed). Prices are about on par with a boxed E3-1245v2. What would be the prudent choice here? I'd like the IB Xeon because it gives me the power I need yet is reasonably frugal itself (less power, less heat, less noise), which cannot be said about the E5-1620. And the chipset isn't quite as advanced (no native USB3), but perhaps the greater number of PCIe lanes compensate for this.