Tomorrow is the Vista Product Launch event in Boston.  Look at what the Boston Globe is saying:

The Vista effect

For every $1 spent on Microsoft's new operating system, businesses and consumers will spend $9.33 on hardware $5.35 on software $3.93 on service providers

This data is from an IDC report.

go see the whole report at:

http://www.boston.com/business/personaltech/articles/2007/01/22/the_vista_effect/