Being an AMD junkie Im still sticking with my single core amd 64. The benefits of the new am2 chips with ddr2 arent there yet. A benefit would be if the makers of soft synths, vst's etc would write more powerful x64 driven apps. But I run a good single core with 3200 ddr and a decent sound card and Im fine so I wont personally be making a jump to ddr2 soon.