the 850 (latest) chipset is used in that MOBO but gigabyte have launched one that uses the 930 chipset. (i thnk)
Don`t have that much info about it, but i remember reading rave reviews about both.
Having said that they are new products so they may have hidden problems...
i would go for the gigabyte ones as they have a good history of making sound products...
Rdram is better ..IMHO