Microsoft offers a completely free web-based version of Office called Office Online, complete with Word Online, Excel Online, and PowerPoint Online. Microsoft even makes these apps available in the Chrome Web Store. There is also the google docs that will let you keep the documents in the cloud and work on them from any connected device.
Things a chromebook can do
As far as the one you buy, only you know what one appeals to you and why, so that is a subjective choice as much as an objective one.
I found this on Amazon:
Personally I think the HP has a better aesthetic, specs aside.