The Sony PRS 350 is a 5 inch e-reader which offers 16 shades of gray scale e-ink and has a resolution of 800×600 pixels. It weighs around 155 G and feels very light in the hands. It has around 2 GB of internal memory which is enough for over one thousand ebooks. It also comes with a Stylus to take advantage of the touch screen.
Here’s the link. According to Goodereader, the discounted price comes up when you are about to pay.