Adorama via eBay offers the 4-lb. Lenovo ThinkPad E450 Intel Haswell Core i3 1.7GHz 14" Laptop
in Black, model no. 20DCS00F00, for $349.99
with free shipping
. That's the lowest total price we could find by $100. Features include an Intel Core i3-4005U 1.7GHz Haswell dual-core processor, 14" 1366x768 LED-backlit LCD, 4GB RAM, 500GB hard drive, Gigabit Ethernet, HDMI, USB 3.0, 6-cell battery, and Windows 7 Professional 64-bit.
Note: Wireless information is not provided.