True, I think 4gb is enough. But I'll just keep the mobo/ram and get a Wolfdale(it seems they can keep up with even a quad-core Athlon II)
, and a cheaper Radeon as you suggested. Maybe even a Geforce GTS, as DX11 gaming is out of the question now that know it massively drops FPS for little difference.
I also asked in the eVGA forum and they confirmed that Wolfdales will indeed work with my mobo.