This week I migrated iksaif.net (and zordania.com, finestown.com, etc...) from apache to lighttpd !
It used to be like described in my previous post: http://xf.iksaif.net/blog/index.php?post/2009/05/08/Securing-a-shared-Web-Server
Now, the architecture is more like that:
lighttpd-misc --- git
\- redmine
\- lighttpd-iksaif - xf.iksaif.net
\- apache - svn
\- trac
\- finestown
\- lighttpd-zordania
\- lighttpd-zorddev
\- lighttpd-uffs - blog
\- git
\- redmine
Is not as performant, but it's a lot more flexible. I had to keep apache for some svn repository, because there is no dav-svn module for lighttpd.
I learned a lot, so I'll post some lighttpd configuration examples that could help you one day.