Recently we talked about the things you need to consider buying a Windows 7 compatible computer. This need to be considered if you want your computer to run Windows 7 'XP mode'. According to Ed Bott's Microsoft Report there are Intel processors that doesn't support Windows 7 XP mode.
If you really interested in running Windows 7 XP mode and planning to buy a new computer remember to check CPU supports Intel Virtualization Technology (Intel VT).
