I bought a manufacturer's refurbished ASUS X205TA off Amazon for £120/$160 and it has excellent battery life, can't say much about the storage capacity (32gb) although you can put an SD card into it. It runs the full Microsoft Office suite fine and Google Chrome with no issues.
It's incredibly light and weighs like 1kg or something.
However, I no longer use it any more.
I gave it to a family member and switched to a ThinkPad X220 (not a netbook) because I was getting frustrated with attempting to put Windows 7 or Linux on it, and the chiclet keyboard was getting on my nerves.