First unveiled at CES 2011, Lenovo has officially launched its new Edge series notebooks. The 14-inch ThinkPad Edge E420s is now available online with a starting price of $699, while the 12-inch E220s is slated to appear on Lenovo's website by April 8 for roughly $899 according to a company roadmap (PDF) discovered by Engadget.

The base E420s packs a 1366x768 LED-backlit display, a 2.1GHz Intel Core i3-2310M with an HD Graphics 3000 core, 4GB of DDR3 1333MHz RAM and a 250GB 5400RPM hard drive. If desired, you can upgrade the system with a Core i5-2410M (2.3GHz to 2.9GHz), 8GB of RAM, and a 320GB 7200RPM HDD or 128GB SSD.

All units come with a fingerprint reader, an optical drive, an HD webcam, 802.11b/g/n connectivity, and a 48.8Wh battery. Depending on your budget, you can choose between Windows 7 Home Premium or Professional 64-bit as well as Bluetooth 3.0 and a few WWAN options including a Centrino chip with WiMAX support.