I'm interested in building a high quailty audio machine for my music production. While, Core 2, is nice option....I still have faith that the AM2 chips using the 65nm will prove to be just as good if not better. Now why would I pay $2000 for the AMD opteron, when the X2 FX-62 is half the price. Now I mentioned AM2 because I'm interested in going with an AM2 motherboard which will allow me to newer X2s built at 65nm. Still, whats the big difference from the Opteron & X2? I love AMD chips, what can I say.