Toshiba Satellite P305D-S8900 17.1″ LCD, Dual Core 2.0GHz, 4GB RAM for $649.99 shipped after this $50 rebate. Its features include a AMD Turion X2 Dual-Core CPU at 2.0GHz, 17.1″ LCD at 1440×900 resolution, 4GB DDR2 memory, 320GB hard drive, DVD±R/RW burner with dual-Layer support, wireless 802.11b/g, Vista Home Premium and more. Others usually sell this laptop for about $800. Note that at 7.39 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.
Originally posted earlier, this is just a friendly reminder.