Today, HP introduced its first all-in-one business PC, the HP Compaq 6000 Pro, which will be available on July 16. The sleek, space-saving computer has a 21.5-inch HD LCD monitor with a built-in webcam, stereo speakers, and a dual microphone array. It comes with a choice of Intel Core 2 Duo processors, up to 8GB of memory, and an integrated Intel Graphics Media Accelerator. The Windows 7 computer comes loaded with  HP Power Assistant software for managing energy use and a full version of HP Skyroom for videoconferences.  Another big plus: it has seven USB ports, as well as an optional TV tuner. Cost: $899 and up