Sure, it's not too much trouble to install Ubuntu on the all-in-one PC of your choice, but those looking for an out-of-the-box option now have a new one to consider courtesy of System76. The company has today added the Sable Complete to its Linux-minded line-up, an all-in-one PC that starts at $799 and comes pre-installed with the recently released Ubuntu 12.10. As for hardware, that base model offers a 21.5-inch 1920 x 1080 display (behind edge-to-edge glass), a 2.9GHz Core i5 3