WPMU Dev Dashboard & Multisite plugins

Here's my problem: I'm new to using Multisite and I'm having a problem understanding which plugins need to be activated where. Specifically, do I need to netword activate the WPMU Dev Dashboard?

Is there information anywhere about managing multisite installations? I'm a competent programmer and wordpress person. I've set multisite up for a customer on their website and need to create a plan for rolling out 150 websites.