there is no point in getting a vanilla AM2, if you are going to go this route, just go AM2+ and the AMD 790FX/790X and there is a 770 chipset as well.
you can find some deals on the AM2 MoBo's with nVidia's nF-5x0 series or some ATI (pre-merger) xPress chipsets, but forget about quad-core support they are for the most part X2 only.
i avoid VIA chipsets with any A64 platform. they just cant compete. cheaper sure, but performance challenged compaired with nVidia