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Buying a computer that is pre-loaded with Windows Vista would make things much simpler. But even though Microsoft has promised that Vista would be available in early 2007, most of us are already aware that Microsoft routinely misses promised release dates.
Therefore, my advice is don't wait for Vista. Go ahead and buy a new PC with Windows XP.
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Luckily, all the hardware components that are required to get the best performance and visual effects from Windows Vista are already available in the market.
ATI's Mobility Radeon chipset is good enough to display the Windows Vista Aero 3D-desktop. Even the NVIDIA GeForce GPU series have been declared as "Windows Vista Ready"
The entire x64 processors from Intel and AMD will be excellent processors for Windows Vista. The latest Intel Core Duo processor for Laptops is perfect for Vista. For desktops, the Intel 945G Express Chipset is Microsoft Windows Vista ready already.
If you choose a system today that has integrated graphics, look at the specific chipsets that are targeted to support WDDM, such as Intel's 945G express chipset or ATI's RS400 or RS480 family chipsets. You may also want to consider dual channel UMA solutions and 1 GB of system memory.
Related Reading:
Choose the right Windows Vista version | Windows Vista could boot computer sales | Windows Vista Problems | How to Ensure New PC Can Use Windows Vista | Buy a new PC or Wait for Vista | When buying a new PC, keep Vista in Mind | Centrino Duo: Buy or Wait ?
Windows Vista Ready Hardware List:
Vista Capable Intel Processors | AMD chipsets | ATI Graphics Card | NVIDIA Vista Ready Graphic Cards