I'm still looking for a static site generator that's as easy to use as Wordpress (so with a UI, not markdown). Anyone know of something that fits the bill?
If you're looking for a static site generator that's as easy to use as Wordpress, you could consider using Wordpress. Wordpress caching plugins can generate static HTML which then gets served to visitors directly by Apache or Nginx, without hitting PHP at all.
Its trivial to put in a cache level that generates and stores static html in from of WP, Drupal, etc. So you get both worlds; the tools that dynamic CMS's give you and the performance of a static site.
I think it took me 5 minutes to install varnish on a WP server I have. Varnish delivers these pages straight from ram. My page load performance is fairly absurd. If that's too technically daunting or your webhost doesn't support varnish, totalcache is also good. Boost for Drupal is good too.