Lenovo has announced an itty-bitty machine with a lot of punch (potentially). The ThinkCentre A55 SFF PC is 64-percent smaller than the traditional Lenovo desktops and 25-percent smaller than the conventional small desktops. It can be fully customized with up to a 500GB hard drive, Intel Core 2 Duo processor, 4GB of RAM and support for Windows Vista. It is only 3-inches tall and 12.2-inches by 14.1-inches deep and wide. Prices for this desktop begin at $579 for the low-end model.