Just an FYI that I posted a note about an OSD related issue we've seen when deploying to a certain Dell laptop over on our new ConfigurationMgr blog:

http://blogs.technet.com/configurationmgr/archive/2009/01/15/configmgr-2007-dell-latitude-e6400-laptop-hangs-during-windows-xp-mini-setup.aspx

Enjoy!

J.C. Hornbeck | Manageability Knowledge Engineer