It should be more than capable for fable 3

There's always maplins

You could just change the internal transformer with the correct ac voltage output, or get a step down tool transformer transformer:
http://www.ebay.co.uk/itm/3KVA-Power-Tool-Transformer-/280750742041?pt=UK_Home_Garden_PowerTools_SM&hash=item415e0c5a19

I think its a dell optiplex and that blue cable is a cd audio cable thats been unplugged from the optical drive.

Batman will never make it in time.

Start the Reactor.