Scripted installation is an efficient way to provision multiple ESXi host. This video explains how to use a kickstart file to install or upgrade ESXi. Both Shift-O invocation and PXE boot are supported.
In this video, Senior Product Manager Alan Renouf covers some of the concepts of reporting using PowerCLI and gives you examples of reports that can help you manage your vSphere and vCloud environments.
Kyle Ruddy covers examples of adding a host to a vCenter Server system, setting the host to be in maintenance mode, licensing the host, adding an NTP server, setting up the networking and adding datastores to the host.
In this video, Kyle Ruddy shows you examples of creating a vSphere Distributed Switch, adding hosts to the switch, creating distributed port groups, creating VMKernel network adapters, backing up a vSphere Distributed Switch and then restoring it.