Is it possible to automatically create virtual machines using vSphere / ESXi? How would I go about doing that?
I have a script to automatically create + install windows on a VM using VirtualBox. It makes the VM, mounts the CD (which is an unattended XP install resulting in machine shutdown), then unmounts the CD when it notices the machine is off. Can I do something similar w/ vmware's stuff?
both VirtualBox and XenCenter have command line utilities which do things like let you turn machines on/off. Is there an equivalent cmd line utility for vsphere / ESXi?
Sure. I thought you are interested in the official documentation.
Edit: Ok, I could have copied the complete step-by-step guide from here. But that would also be too much for an answer.
The Orchestration part of vCenter is particularly good at this, it can tie into your networking and storage too.