Windows Vista new imaging software now makes it easy and affordable to deploy Windows using compressed images. A reference PC is installed, configured, imaged and that image can be used to install hundreds more PCs.
With the new tools that come with Windows Vista, it is faster (and arguably easier) to deploy Windows to multiple desktops, that is, once you get your base image(s) created. There is a learning curve. You will have to learn about the WAIK, WSIM, WinPE, ImageX, autounattend.xml and sysprep.xml. Though not rocket science, time will need to be spent learning these new tools and processes. The following will show you how to configure a reference PC that once imaged, using Sysprep and ImageX, can be deployed to multiple PCs in a Windows Server 2003 domain environment.
Windows Vista, Sysprep, ImageX, Tips and Tricks, Knowledgebase