Sony NS230 Laptop with 15.4″ LCD, Dual-Core 2.16 GHz CPU, 3GB RAM for $579.99 shipped. It features an Intel Pentium Dual-Core CPU at 2.16 GHz, 3GB RAM, 250GB hard drvie, dual-layer DVD burner, 15.4″ LCD with 1280 × 800 resolution, 5-in-1 medeia card reader, 802.11g/n wireless, and Windows Vista Home Premium. Note that at 6.40 lbs, it is more like a very portable desktop instead of a truly lightweight laptop. For the other end of the spectrum in terms of extreme lightweight and portability, check this out. Others usually sell this Sony laptop for $699.