Lenovo IdealPad U350 with 13.3" LCD, Ultra Low-Voltage CPU for $579.00 shipped after coupon code USP08THINLIGHT.  Selet Model 296325U as shown here.  It features an Intel SU2700 processor at 1.3GHz, 13.3" LED-backlit LCD at 1366 x 768 resolution, Intel Integrated Graphics Media Accelerator, 2GB RAM, 250GB hard drive, wireless 802.11b/g/n, Bluetooth, and Windows Vista Home Premium.  Note that you will also receive a Free Windows 7 Upgrade.