Lenovo offers its 4.9-lb. Lenovo IdeaPad Z510 Intel Haswell Core i7 2.4GHz 15.6" Laptop in Dark Chocolate, model no. 59400189, for $649. Coupon code "USPZ5192327" cuts it to $619. With free shipping, that's $380 off list, a $10 drop since last month, and the best price we've seen for this build. Features include an Intel Core i7-4700MQ 2.4GHz Haswell quad-core processor, 15.6" 1366x768 LCD, 8GB RAM, 1TB hard drive, DVD burner, 802.11n wireless, Bluetooth 4.0, webcam, 4-cell battery, and Windows 8.1 64-bit. Coupon expires April 23.