these new cards are power-hungry so i doubt AGP will bring them enough power
however, if they weren't, ati and nvidia will probably have AGP versions, seeing that the MSI k8n neo2 plat. is the best selling mobo for a long time (dunno if the dfi lanparty has beaten it..i highly doubt it)
most people have AGP versions and don't want to sacrifice their gfx card just b/c they're upgrading to a new cpu and mobo