Steve Clines, MCSE, MCT, has worked as an IT architect and engineer at EDS for over 18 years. He has worked on deployments of more than 100,000 seats for both Active Directory and Microsoft Exchange Server. Steve is the author of MCSE Designing a Windows 2000 Directory Services Infrastructure For Dummies, which is a study guide for the 70-219 MCP exam. He also maintains the Confessions of an IT Geek blog at http://itgeek.steveco.net.