I have this Toshiba Chromebook 2. I bought it just about 1 year ago. It was $329.99 + shipping from Amazon. I know that there is a new version of the Toshiba Chromebook 2 with better specs but the original is a pretty good one.
You can get it for:
Intel Celeron Processor N2840
4 GB DDR3L SDRAM memory, 9-hour battery life
16 GB Solid-State Drive
13-inch IPS Screen, Intel HD graphics