Hi, I'm looking to buy a thin 'n light notebook. used/refurbished is fine as long as it has something like a 1-year warranty. Is it possible to get one for 500$? It doesn't need to be fast.. like a p3 600 Mhz would work fine. but light would be great (<5 lbs). cd can be external or internal... this is for my mom who will only be using it for stuff like microsoft word. It does need to have USB though. any thoughts?