Almost all the AM2 boards I've seen so far are fairly solid. The AM2 chipsets (nForce 500 series/etc) are very similar to the s939 chipsets. The main thing that changed was the DDR2 memory controller and that was on the processor. Because the A64s have no traditional front side bus, the mobo chipsets talk to the CPU and not the RAM. All ATI, Nvidia, Via, and SiS had to do for their AM2 chipsets was refine their s939 chipset designs.