Unless you must buy from Newegg only, a 16GB Kit (8GB x2) direct from Crucial has LOWEST cost of $125.99 with FREE shipping. You really seem bent on getting heat spreader RAM. That's NOT really necessary...but if you want it. Lower voltage shouldn't matter either...maybe with (16) sticks in a server. Same with CAS Latency; for a consumer desktop computer, it's insignificant.
Why doesn't End PC Noise use $80 boards in their $1,699 and up DAWs...would be more profit. They do use ASUS boards EXCLUSIVELY...perhaps there's a reason. None of their RAM uses heat spreaders. Realize the $40 dollars SAVED getting Core i5 3450 vs. Xeon E3-1230 PAYS for additional cost of ASUS P8Z77-M board, opposed to a questionable, cheaper one.
Core i5-3450, 3.1GHz (3.5GHz Turbo):http://www.newegg.com/Product/Product.a ... 6819116506
Also a 3.2GHz (3.6GHz Turbo) SAME $199.99 price, but fewer (69-92) reviews:http://www.newegg.com/Product/Product.a ... 6819115234
Core i5 3450S is only 2.8GHz (but 3.5GHz Turbo) with lowest 65W TDP, for $5 more:http://www.newegg.com/Product/Product.a ... 6819116507
Beware of getting WAY too hung up on minutia. Gamers & performance freaks trying to impress <whomever> make a BIG DEAL over .00126 differences, but that didn't seem to be your concern. Save the obsessing for where it will count: fan selection, meticulous assembly & additional dampening (if necessary).
Besides maybe a processor and RAM swap (which will save you $40+ toward a CPU heatsink) I'd say you've got a done deal for your Intel build. If you REALLY want to spend MORE time, find out if AMD is a real option for your situation. Is it worth (another) $100?! Because you'll save at LEAST that much!
FWIW: I'm no expert, but everything I've mentioned is what I'd actually buy with MY OWN money & I'm VERY picky. I'll only recommend HIGHEST quality for the price point and never JUNK!