I'm just about to upgrade my daw and have seen two good options. One is a dual core amd 64x2 and the other has two xeon 3.2ghz cpu's. My question is, do you think I would notice a significant speed advantage with the twin xeon system (about a grand more than the amd 64x2)? I use Cubase SX3 and Reason 3 with an O1x and Emu 1820m. Many thanks for any opinions.