Integrating Hacker News with a Blog

I am college student who has made the foolish choice to blog, and on top of that I have made an even more foolish choice to roll my own blogging platform (as an excuse to learn ruby+rails) and since I am doing foolish things, I figure I might as well attempt to add novel features too.

Do any plug-ins or blog platforms already exist that integrate hacker news? The blog would have to be associated with a HN account. My goals are automatic posting of new content, display of HN comments, and the ability to comment on the blog with a HN account (actually commenting on the HN post and it displaying on the blog).

Am I insane? Foolish? or otherwise ignorant of a good reason this is a stupid idea? (I would prefer to know now, before I run off and do it) I am likely to run off and try no mater what the input, but additional knowledge can only help.

Thanks!