For some reason I decided to give Railo a try tonight. Railo is dubbed as “the fastest CFML OSS engine” available. The little bit that I’ve messed with it so far, I really can’t confirm that. What I can say however is that setting it up is fairly easy, particularly if you choose to download the express package.
One thing that hung me up though, and seems to hang up some others, is the configuration of virtual hosts when using Jetty. The OS X package is only available with Jetty and the documentation does a fine job of explaining how to setup virtual hosts. The only problem is they fail to mention that you actually need to uncomment some of the included config file to make virtual hosts work properly. Some people might see that right away, I glossed over it.
Documentation for setting up virtual hosts is provided by the Railo team at http://www.getrailo.org/index.cfm/documentation/installation/railo-express/. Note that in the virtual host definition section the documentation shows the option virtual host information already commented out, in the files distributed in Railo Express, they are not uncommented.
You can learn more about doing virtual hosts using Jetty at http://docs.codehaus.org/display/JETTY/Virtual+hosts.