I don't think the Iwill KA266-R is using the best available chipset for DDR. Look for boards with the AMD 761 Northbridge like the Epox EP-8K7A. Boards using other chipsets (VIA and Ali) do not outperform than their KT-133A counterparts. It doesn't justify getting DDR. The new chipsets from SiS (735) and NVIDIA (NForce) show promise, but they are not readily available yet.