Antonline via eBay offers the 5.3-lb. Lenovo ThinkPad T540p Intel Haswell Core i5 2.5GHz 15.6" Laptop, model no. 20BE003AUS, for $519.99 with free shipping. That's the lowest total price we've seen for the T540p, and a current price low by $110. It features an Intel Core i5-4200M 2.5GHz Haswell dual-core processor, 15.6" 1366x768 LED-backlit LCD, 4GB RAM, 500GB 7200 rpm hard drive, 802.11n wireless, Bluetooth 4.0, DVD burner, 6-cell battery, and Windows 7 Professional 64-bit (with a license for Windows 8.1 Pro 64). Deal ends April 30.