Vista,

Your operating system of choice.  So how are you going to get there?  Hard Disk format, in-place upgrade, new system?

Microsoft have released more information on the upgrade matrix - obviously you can not upgrade from anything to anything, so what can you do?  Well the matrix at http://www.microsoft.com/windowsvista/getready/upgradeinfo.mspx shows

WINDOWS VISTA EDITIONS
	Home Basic	Home Premium	Business	Ultimate
Windows XP Professional
Windows XP Home
Windows XP Media Center
Windows XP Tablet PC
Windows XP Professional x64
Windows 2000

Requires clean install.
In-place installation option available.

There is also a little side note that needs a little more testing that I have not had a chance to check into yet.

"If you are currently using Windows 2000 Professional or Windows XP Professional x64, you are eligible for an upgrade copy to a corresponding or better edition of Windows Vista, but a clean install is required."

This might mean that all of you with x64 copies of Windows might get the new OS without paying the full price.  Before you "go off and celebrate" - I have asked for clarification.

ttfn

David