Is there a good planning document that can help me decide how many ISA servers to deploy? I've got a large network that I'm working on and I'd like to ditch the vintage NT checkpoint box in favor of ISA. I'm thinking that 2 ISA servers will be the way to go but I'd like to review my thoughts against Microsoft recommendations. Is there such a document? I found one called: Network Concepts in ISA Server 2006 But all it does is list the deployment scenarios doesn't explain how to choose between them. Amy Babinchak