I mentioned before that Windows Vista SP1 went RTM, well Microsoft has now released it for download:
Windows Vista SP1
From the site (good info):
Windows Vista Service Pack 1 (SP1) is an update to Windows Vista that addresses feedback from our customers. In addition to previously released updates, SP1 will contain changes focused on addressing specific reliability, performance, and compatibility issues; supporting new types of hardware; and adding support for several emerging standards. SP1 also will continue to make it easier for IT administrators to deploy and manage Windows Vista. Windows Vista Service Pack 1 Five Language Standalone version can be installed on systems with any of the following language versions: English (US), French, German, Japanese, or Spanish (Traditional).
Read the overview of Windows Vista SP1, including what’s new, technical details, guidelines and notable changes.
Read the Deployment Guide for Windows Vista SP1. This guide includes technical information, procedures, and recommendations for installing Windows Vista SP1 in a business or corporate environment.
Before installing SP1, please visit the Windows Vista TechCenter and read the page “Things to Know Before you Download Windows Vista SP1“
Enjoy!! 
