Lenovo rolled out the new IdeaCentre C300 all-in-one desktop PC. The 20-inch C300 sports an Intel Atom 230 processor, up to 2GB RAM and integrated graphics. It comes with up to 640GB hard drive and a tray-in oprical drive.TheIdeaCentre C300 has a 20-inch 1600×900 LCD display, a 1.3 Megapixel webcam, a 6-in-1 card reader. It supports Ethernet and optional WiFi 802.11a/b/g connectivity. The C300 will come in July for about $449.