Yeah.. Multiple Cores are the future.. I would like a quadcore, 1 cpu to do the household (disk i/o, PCI i/o, screenredraw, mule'dl) and 3 for your plugins & stuff..
For me its too early, European Steinberg rep has warned against buying dualcores right now.
BTW the Pentium M has 2 megs of cache, that's also why he scores so high in Doom3. Guess its good for plugins too, the more cache the better.