Binding to OD after imaging

This is in Leopard: We have a "golden triangle" setup here and I want to be able to get InstaDMG to produce an image that is already bound to our OD server. From there, it can get a name that can be used to bind it to ADS. So there are 2 problems here: 1) OD binding: Do I make a pkg of the .plist files that are generated under /Library/Preferences/DirectoryServices to take care of the OD bind or should I write a startup script or login hook? 2) AD binding - Last time I had the machine bind to AD with one of Mike Bombich's scripts that ran whenever someone logged in and then deleted itself. Can I create an initial login hook and then package it? If I can have the machine already in OD, then I could manage the login hooks via WGM... very nice... but I need to get it into OD first.