Forsakenevil :
still can't decide on which to get, both has there pros and cons.
asus DDR2
790I DDR3
leaning more towards asus for the DDR2 Friendly OC nub like myself.
why is the ausu higher in price than the 790i? since it doesn't support DDR3?
Because Asus is Asus. You're paying more for brand name.
I know it's strange, since ASUSTek is a company based in Taiwan, with factories in mainland china, and people usually don't associate Made in China with good quality. But they made a name for themselves, so they can charge more, and people will still buy it.
Aside from that, x38/48 overclocks better than 790i.
Asus price is bad for reference, since it's inflated. A x38 board should cost around $200, a x48 should cost around $230.