Hi, I am planning to set up a PC which will only perform audio mixing. No recording at all except only one input of vocal sometimes. But the wav file formatted tracks in the process of mixing would be average and above 20 and at least 1 or 2 plug-ins effects would be applied to each track. Is Dual Core is a must for such a mixing system? I will surely go for at least 1GB of RAM. But my idea is still in fog about processor. I would accept the higher in spec, the bettter quality. But I want my budget suits with my needs. Any recommendation from experience?