I understand when you buy something expensive, you try to make sure you are making the right choice and that you are getting the worth of your money, I understand this notion. We all are afraid of making mistakes which is why I think it is best to just sit and wait till somebody else gets such an expensive thing for you on your birthday or Christmas, then you don't have any of these things to worry about.
it is an ok board with OC genie (very tempting 1 button OC)
with the PSUim palnning on buying the ST60F
I concur... MSI new P55 models are really looking good. Still, OC genie doesn't match a real overclocking tweaking. Still, it's a nice feature for people not really aware of how to do it.
Anyway, my suggestion of going with AMD still hold. For only 2 5770, you will not really see the benefit over a cheaper AMD solution.
Phenom II X4 955
Asus M4A78T-E (2 PCIe slots at single 16X or double 8X)
Some cheap OCZ Platinum DDR3 1600
Corsair 550VX or OCZ-Z series 500W
And you are good to go with a system that cost way less.
Also, you should invest way more on a good power supply. 500W should do, but a good quality power supply with a good efficiency will really make the difference and preventing you some trouble if an accident occurs. The power supply is really an important component that need to be purchased with care.