This video tutorial / Screencast walks you through all the steps to prepare for a zero touch installation of a Windows image using Microsoft Deployment Toolkit (MDT) and System Center Configuration Manager (ConfigMgr) 2007:
Setup the server environment for ConfigMgr 2007 OS deployment
Configure the ConfigMgr 2007 Site Settings
Configure the ConfigMgr 2007 Computer Management Settings
Configure the ConfigMgr 2007 Operating System Deployment Settings
Setup and use MDT integration with ConfigMgr 2007
Add a reference machine object to ConfigMgr 2007
Create a build and capture reference image for mass deployment using ConfigMgr 2007