Zanny, wrong benchmarks - the Xeon scales, well, poorly. The ones I'm waiting for are the dual Opteron 64-bit workstation benchmarks. You do realize that Opteron is an AMD64 product, and Xeon is an Intel product, right? Dual Opterons run rings around dual Xeons, and I'm certain that dual G5s will be no match for it either.
Why are you quoting benchmarks that do not compare with the industry's fastest workstations?