Lamborghini Big O costs up to $22,799

This is part of a very luxurious, it costs more than an ordinary car. But its creators believe it will be very broad market.

Origin PC's "Big O" computer is available to Australians from today and costs between $10,999 and $22,799, depending on the internal configuration.

This tweaking process is known as overclocking and is often performed by geeks looking to wring maximum power out of their equipment. Overclocking generates significantly more heat and, to combat that, the entire machine is cooled by a liquid cooling system as opposed to fans.

Kevin Wasielewski, chief executive of Origin, said the machine was first created as part of a "Dream Machine" competition run in the US by CPU Magazine, which described the computer as the "ultimate PC", offering "everything and the kitchen sink".

He would not say how many people had ordered one of the computers so far but said all buyers chose different configurations and the internal hardware could be customised to suit different needs and budgets.

"The one that we built for CPU Magazine has an Xbox in it but we can also do a PlayStation 3 or Wii," said Wasielewski.

"This is not the type of machine that's built on necessity; it's more of a machine that's built on the ultimate entertainment factor. It's not that you need the system, but you want the system."