I would like to integrate Castle Windsor into a WCF project and have read that you can hook it up using the WcfIntegration facility but I am unable to find where to download
It's in NuGet now with all of the other 3.0 beta stuff.
Install-Package Castle.WcfIntegrationFacility
http://nuget.org/List/Packages/Castle.WcfIntegrationFacility
Update
Just to follow up, The one in nuget is targeted for Windsor 3.0 beta 1. I found out the hard way that some of the other facilities do not yet support 3.0 beta 1. Specifically, if you're using the NHibernate or AutoTx facilities, you need to stick with a WCF factility compiled for Windsor 2. The latest one seems to be the Jul 29 2011 commit from the git repository, available here.
This will have to suffice until the 3.0 versions of the other facilities are updated. It's already being discussed on the castle users group list.