Found the forum looking around to retrofit a system to an existing home and gathering ideas for future homes as a builder. Learning the wiki and reading cliff notes. Thought I was going the NVR route and box kit route but so many ideas here have me reconsidering. I do have an older iMac that is wiping and sitting idle but not sure its up to the BI task so may stay with NVR but homework in progress. Thanks in advance for all those who have taken the time to comment on others as I am studying those now.