The high-end home XPS line isn't the only Dell PC to get a boost today. The business side of the house added the OptiPlex 745 family to its product line, which includes Intel Core 2 Duo CPUs and a variety of chassis options. There's not that much different from the previous high-end aside from the new chips and assorted updated specs (the versatile Radeon X1300 GPUs, for example, rather than the Radeon X600s on the older PCs), but the new chips are really reason enough to make an upgrade. They're faster and more power efficient than the GX620's old Pentium D CPUs. That means more reliability, less wear due to heat, and more productivity. All good stuff.