i agree on the processor, im not a fan of AMD either. I also think quadcore is still kinda instable since its rather new but not so sure about this.
but wtf is your point with the 3RAM thing? standard is 2gb nowadays i think, 4gb is kinda overload (i have 4 and it rarely goes above 50% usage) but then again, vista automaticly REMOVES 1GB just for the OS to use o_o
Quads arent really unstable, you just cant use all of their power unless the program is made to use all of its power. And even then, if it uses more than 1 Cache, it introduces a bottleneck into the system that you cannot bypass whatsoever, so a dualcore would actually be faster.
Standard nowadays with vista, is actually moving more over to 4GB, though it depends so much on how you use it. I know guise wiht 8GB Ram, and THATS overkill
One would actually benefit more from faster ram, going from DDR2 to DDR3, and up in clock speed(feks from the DDR2 800mhz to the ram i use: DDR3 1333mhz) REALLY impacts.
I had DDR-DIMM before though , took me like 3minutes to load Ez Drummer - Drumkit from hell. Now it takes me aprox 5-10 seconds, maybe less