Lenovo is expanding its IdeaPad line to include some new S Series ultraportables. Today the company announced the 13.3-inch S300, the 14-inch S400 and the (also 14-inch) S405. These models sport a metallic finish, with color options including crimson red, silver grey and cotton-candy pink. All three models measure 0.86 inches (21.9mm) and weigh 3.97 pounds (1.8kg), and, aside from screen size, the main difference between them is processor type. The S300 and S400 will be available with Core i3 or Core i5 CPUs, while the S405 will ship with an AMD chip (up to a quad-core A8 processor). Storage options include a 500GB, 750GB or 1TB hard drive, and the S400 and S405 are configurable with a 32GB SSD. Lenovo says you can expect up to five hours of battery life from these machines. They'll go on sale in August (aka now) for $499 and up. Though all models will ship with Windows 7, they'll be eligible for an upgrade to Windows 8. Check out our hands-on below.