Commento > Disqus, but both are still hosted services. While I'd rather pay a few bucks a month and have a faster service without advertising, what I want is a commenting service I can self-host. More than that, I'd like to use a blogging program with an integrated commenting feature so it's not just a bolted on thing.

Maybe I'm missing something, but it seems like the only blogging software that offers self-hosted comments that are integrated into the platform is good ol' Wordpress.org.