Toshiba Satellite T135D-S1325RD 13.3" laptop for $529.99 shipped.  Here is a screenshot for reference.  This laptop is very portable at 3.88 lbs and features an AMD Athlon Neo X2 Dual-Core processor, 13.3" LCD at 1366 x 768 resolution, 4GB RAM, 320GB hard drive, wireless 802.11b/g/n, webcam, media reader, Windows 7 Home Premium (64-bit), and more.  Most places have this laptop for about $589 or more.