Hey again man,
If that is the mobo I rec'd before I think we need to change it to a Z77 mATX mobo.
Microcenter pickup:
MSI Z77A-G41 LGA 1155 mATX Intel Motherboard
SKU: 999904
$49.99
$24.99
after Rebate
[Details] $49.99
Intel Core i5 3570K 3.4GHz LGA 1155 Processor
SKU: 425470
$169.99 $169.99
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Get this RAM:
http://www.newegg.com/Product/Produc...82E16820220737
The video card landscape has changed since your first thread so now I'll encourage you to consider a nVidia 650Ti or a AMD HD 7850. Newer architecture, lower power consumption, less noise, less heat = good. The 6870 is in between the performance of those two, but is an older platform (not a bad thing).
http://www.newegg.com/Product/Produc...82E16814127710 MSi 650Ti
http://www.newegg.com/Product/Produc...82E16814125419 Gigabyte HD 7850
Did I suggest that PSU? If so, I'm sorry
Find something 80 Plus certified like this for example. You only need about <400W for this system, so whatever you find on good sale.
http://www.newegg.com/Product/Produc...82E16817371044
Those are the important changes. I probably pushed your price up very slightly but i think the changes are worth it.