Well I guess we won't know until they release part numbers on the CPU, and that part number is available form Newegg/Amazon. It's not clear to me if they're going Haswell or Ivy-Bridge. The I-B E5 Xeons on Newegg now are all 6+ cores and very expensive (into the thousands of $s). The closest I can find are Haswell quad core (the new Mac Pro is 4-core) and are much cheaper: http://www.newegg.com/Product/Product.aspx?Item=N82E16819116...

> I would be interested in seeing the cost of a truly equivalent generic PC build. ("Truly" equivalent meaning no non-Xeon CPUs and other "almost as good" parts, something that's all too commonly done with Mac Pro comparisons.

I agree with that. We'll have to see.