I'll attach my diagram and thoughts: The items in green are what I already own and the stuff on the left is my current working setup. I am slowly buying cameras but do already own the 20watt PTZ too. (never used) From what I have been reading for days now, it seems that the network on the right would be correct to run "as is" all by itself. If I want to connect it to the internet, I then make the connection in the red link. Please correct me if I am mistaken - Learning switches is oddly difficult for me. Additional Questions: 1. Does an 8 port switch actually need a 9th port to connect to the BI computer? (I've seen some switches with all identical ports on the back and no other uplink) 2. The PTZ calls for POE+ but am I correct in thinking I could use its power jack if I don't get a POE+ switch? 3. A local guy has used Cisco 3560 PoE 24 port switches super cheap ($35) - would that be a good choice? 4. If you have a bunch of 4 or 8 port POE switches, can they all just be "daisy chained" together to get whatever you need as you expand? Thanks for any input here - I really am trying.