vLite is a free download that can cut vista size by half or more.

Original Source: http://www.informationweek.comA free software tool that promises to strip down the Windows Vista operating system — which even some Microsoft officials have called “bloated” — to a minimalist state is attracting big interest on the Internet. vLite, created by developer Dino Nuhagic, automatically removes a number of non-essential Windows Vista components in order to [...]