I'm running my DAW on a Gigabyte GA-K8NS-939 (nForce3 Ultra chipset) with an AMD 64 Athlon 3000+ (1.8 Ghz) and 1 gig of RAM. I've had this just over a year. However, my projects have now become too taxing for it to handle. They typically involve rewiring Reason and running Sampletank from Sonar. This is fine and rarely takes my CPU higher than 30%. Adding numerous mixing and mastering Waves/TC Native plug ins takes me up to 75-99% and I'm beginning to lock up with my work. 1) The 3800+ and 4000+ are 2.4 Ghz while my 3000+ is 1.8 Ghz. Should an upgrade of this sort allow me a ~30% increase in DAW processing power? 2) The 3800+ has a 512 MB L2 Cache (like my 3000+). The 4000+ has 1 gig. How significantly will this doubling in L2 Cache translate to inreased DAW/plug-in processing? FYI, the 3800+ is $350 CAD, the 4000+ $410 CAD. Thanks.