I put together this page on our wiki to help everyone trying to use Alfresco in a high availability deployment. Alfresco has a wiki page that contains a lot of the same information. The only difference here is that our page is meant for users who have never touched Alfresco before. It's a little more detailed and also contains init scripts plus instructions on how to set up open office, FTP and CIFS. It also touches on disaster recovery.
The motivation behind creating this page was that many of our clients asked for all this info in one place.
If there are any mistakes in the document please let me know. If any improvements need to be made I'll be happy to make them.