I would just use my regular old machine (or even my trusty P166 which has ripped more CDs than I can even think of). Why? Because I'm not *around* enough to swap CDs fast enough to keep the the dual Xeons' busy. Casually ripping CDs on my Athlon 1.4 (no XP, aka: "C", right?) while doing other things on the machine was the most efficient use of my time, anyway. Worked for me.

But I also had my P166 and whatever machine was on my work bench ripping straight to my main hard drive over the network. My bottleneck was CDRom read, so with 3 CDRoms working, it maximized throughput for me.