ExtremeTech builds a PC optimized for Windows Vista, component-by-component. Their total price: A steep $2,525 (in hardware only – not including the cost of the operating system and/or apps) for the ultimate Vista rig. And that’s without high-definition optical drives and next-gen DirectX 10 video cards, which the editors are expecting to arrive around the same time as Vista. Speaking of Vista, there are screen shots of Vista Build 5721available on Microsoft’s own TechNet blog site. Builds in the 5700 series are those in the “release-to-manufacturing tree”; Vista Release Candidate 1 is only Build 5600.