I started out planning my build based on a LGA 1150 Z87 motherboard and cpu as being the newest and set up for the 4th gen i7 cores. While trying to decide on which cpu to get, based on Passmark ratings http://www.cpubenchmark.net/ for speed/cost, I noticed some of the older chips, 2nd gen i7 cores, were substantially faster for just a little more money.
I was thinking if the 2nd gen i7 cores are faster than 4th gen i7 cores for the same or a little more money, why go with 4th gen? The i7-4930k Passmark rating 13,280 $559.99 LGA 2011 X79 versus the i7-4770k Passmark rating 10,342 $319.99 LGA 1150 Z87. Is 30% more speed worth the $240?
Here is the build I am considering.
http://pcpartpicker.com/p/3s0I4
Its more than I want to spend, but I figure this build would last me for years.