Anyone know if PD is aided by SMP?  I'm throwing together a new box in which I will install UbuntuStudio with the intention of using it as a live processing rig for live performance using PD.  I'm interested in discovering whether it makes more sense to get a Core 2 Quad processor that runs with a bus speed of 1066 or a Core 2 Duo processor that runs with a bus speed of 1333.  The idea is to reduce latency as much as possible.  I'll get I/O via a RME 9652 and a couple Behringer ADA8000 units.  Also, any thoughts on how ram speed plays into this equation?  I'm looking at the Intel dg33fb board.