That sort of ram is only good for overclocking otherwise stick to 1333/1600's for less hassles, and i wouldnt use an MSI product if my life depended on it - there products are garbage.
Over-clocking is the intention as I plan to learn the intricacies of the science with this build. That is the reason I purchased the AMD 955 mbox as opposed to the 955 ibox. The 955 mbox comes with an unlocked multiplier and is supposed to be able to out-clock 965 ibox. Up to 4.4-4.6ghz according to some in the reviews and some even expect higher no.. This is, of course, with a good after-market cooler.
As for my choice of the MSI 790FX MB, I choose so for the same reason. Over-clocking. This board claims the fastest OC capability out there that I have seen so far. It's reviews seem very positive for the most part so unless you can point out some personal experience with this particular board I'm afraid I will have to discount your negitive feelings.
Thanks in any case