Included with the game system is one controller and all the standard hookups you'll need to get started.
You'll need to be a subscriber to get in on the deal, but that's where the free trial comes in. Not that you'd have much use for the system without being a subscriber, mind you. The deal ends on November 19th and Assassin's Creed cost $49.99, so keep that in mind before ordering.
Sadly, OnLive is not yet available in Australia, but other countries will be able to take advantage of this deal. Here's hoping Aussies will be able to join in soon.