This is some commands that help use VBox by scripting the most common use cases.

VBoxClone	Clone a VM (no longer maintained - use VBoxCtrl!)
VBoxCtrl	Controll (start, stop, restart, snapshot, clone, hotplug CPUs) a VM
VBoxISCSI	Add/Remove/Delete a iSCSI target from a VM
VBoxNAT		Setup network NAT for use with VBox
vboxhst		Init script to start previously suspended VM's (by a shutdown etc).