I want this too! This comes close: http://chetan51.github.com/panels/hacker/
[Hacker News'd!] https://chrome.google.com/webstore/detail/njdndkhkelkeepcnmo...
[Hacker News Sidebar] https://chrome.google.com/webstore/detail/hhedbplnihmkekhgma...
But are not perfect and it would be nice to have a single package.