This deal has ended.
HP.com has their super-portable 4.3-pound, 12.1" HP Pavilion tx2500z Notebook for $849.99 after a $200 instant discount. On top of that, enter $150 off coupon code NB8457 (expires 12/14) and pay just $699.99, the lowest price I've seen. This includes a 2.0GHz AMD Turion dual-core processor, 3GB memory (you have to select it as a free upgrade), 250GB hard drive (also via free upgrade), DVD / CD burner, internal wireless networking, and Windows Vista Home Premium. Shipping is free with sales tax charged in most states.