Sreencast : Deploying EP in NLB configuration
Here is a screencast done by Anunay Kumar (Test on Enterprise Portal team in Redmond) - https://channel9.msdn.com/posts/diwakarb/Sreencast--Deploying-EP-in-NLB-configuration
This screencast walks through the steps involved in configuring Enterprise Portal on a NLB web farm. The attached PDF describes step for deploying MOSS on NLB.