Its sort of a given that Skyrim will absolutely devour VRAM so i'm starting to doubt if the 570 will cope well enough, especially if you want to load custom texture packs and the such.
Past experience with Bethesda games.
Just taken a look at the Gen3 Mobo you linked to. PCI-3 connector - I assume this will be found on the next generation of cards? When are these likely to be released?
Would one 570 or 6970 be enough to tackle BF3 / Skyrim at the moment?
570 v 6970 - pretty even at higher resolutions, 570 slightly better.