Best Buy offers the 5.29-lb. HP ENVY x360 15-u010dx Intel Haswell Core i5 1.7GHz 15.6" 1080p Touchscreen Laptop with Titanium Internet Security 3-User 1-Year for Windows for $599.99 with free shipping. That's tied with our mention from four days ago, since expired, and the lowest total price we could find by $180. Features include an Intel Core i5-4210U 1.7GHz Haswell dual-core processor, 15.6" 1920x1080 (1080p) LED-backlit touchscreen LCD, 8GB RAM, 750 HDD, webcam, USB 3.0, HDMI, 3-cell battery, and Windows 8.1 64-bit.