I have no objections to your list, except for the MSI board. Gigabyte would be a more dependable choice, historically, and you seem to want to upgrade the build later.
Just an alt suggestion on the CASe and PSU:http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.245582
Antec 900 and TP-750
TP-750 might be a slightly better PSU than the Corsair, and it is modular. Both are great of course.
I doubt you'll be buying a second 4870 in a few months... I strongly suspect they will be gone. Something to consider if you were hoping to CF that one.