Vic 40 :
No wish for overclocking? Since you want a Z87 motherboard with a non "K"version of that cpu.
You could take a nice B85/H87 motherboard instead if you didn't want to overclock.For that would the 4570 already be a nice choice too and save some money with it.
Only newegg and amazon?
I had no intention of it because i've never overclocked before but I know somebody that can help me, I think if i'm already going with almost $1000 for a build it can't hurt to shell out $10 more for a K version, along with $30 for a 212 EVO cooler.
I also have the most experience with amazon and newegg, and i'm not sure how good the other providers are
Also, amazon and newegg have free shipping that ends up being less in total if I were to buy from somewhere else with the shipping fees on top of it