Ars Technica attempts to glimpse into the future and paint a picture of Apple’s forthcoming Intel-based “pro” Macs. “The prime candidate for the high-end Pro Mac workstation would be the Xeon 5160. It’s clocked at 3.0GHz (enabling Steve Jobs to finally reach the magic 3.0GHz number—albeit two years late and on an entirely different architecture) and has a 1333MHz FSB. It’s also pricey: More …