Knockout Notebook Tests Limits of Performance, Price Tag

No question, there is lots to love about Sony's Z-Series Vaio, model VPCZ125GX/B.

Performance is blazing, nearly at the top of the charts and surprising for a machine this diminutive: The 13.1-inch notebook weighs a paltry 3.1 pounds, yet it packs a high-end 2.4-GHz Core i5 CPU, 6 GB (yes, six) of RAM, optical drive, and switchable graphics, courtesy of an Nvidia GeForce GT 330M. All of this gives the Vaio Z-Series not