Wyatt,
Thanks for your mini-presentation on GoAccess last night. I found the program useful enough that I've now installed it on the various EL6 systems on which I maintain a web server. I also decided to install it on both the old and the new MUUG servers. (There was a Debian package available for it too.)
The EPEL5 repository didn't have it, so I grabbed the source RPM from EPEL6, and with 2 trivial changes to the .spec file, I was able to build a binary for EL5. Since it's tiny, I've attached the patch, in case it's useful to any of you still running EL5.