Lenovo offers its 4.9-lb. Lenovo IdeaPad Z510 Intel Haswell Core i5 2.5GHz 15.6" LED-Backlit Laptop in Dark Chocolate, model no. 59400197, for $919. Coupon code “USPZ5197213” cuts it to $579. With free shipping, that's $340 off and tied with last week's mention as the lowest total price we could find. (We saw an almost identical model without an anti-glare display for $10 less last month.) Features include an Intel Core i5-4200M 2.5GHz Haswell dual-core processor, 15.6" 1366x768 anti-glare LED-backlit LCD, 8GB RAM, 1TB hard drive, DVD burner, 802.11n wireless, Bluetooth 4.0, 4-cell battery, and Windows 8 64-bit. Deal ends February 27.