[CentOS] Anyone run lighttpd + fastcgi + PHP?

I have a website that needs to run Squirrelmail (which is PHP based),
but I'd like to get it feeding into Ruby on Rails as well. I'm looking
at lighttpd because it seems to be easier to get it integrated with
Rails. I'm curious, though, how difficult it is to get PHP running with
it in this configuration. Overall lighttpd seems to be pretty easy to
use. However, it looks like I may have to recompile PHP. I was curious
to see if anyone has done this with CentOS or if there are RPMs out
there in the world that would allow me to avoid this.

Preston