Groupon offers the factory-refurbished 2.5-lb. Toshiba Portege Z835-P330 Intel Core i3 1.4GHz 13.3" LED-Backlit Ultrabook
, model no. PT224U-001001B, for $539
with free shipping
. That's $361 off, $109 under our March mention of a refurb, and the lowest total price we've seen for this configuration. Features include an Intel Core i3-2367M 1.4GHz Sandy Bridge dual-core processor, 13.3" 1366x768 LED-backlit widescreen LCD display, 4GB RAM, 128GB SSD, 802.11n wireless, Gigabit Ethernet, media card reader, HDMI output, 8-cell battery, USB 3.0, webcam, and Windows 7 Home Premium 64-bit. A 90-day Toshiba warranty is included. Deal ends October 11.
Note that this laptop doesn't have an optical drive.