I currently have several (ok, 12) HR20-100s, HR20-700s, and HR24s around the house all connected to whole home over ethernet. The four feeds from the current dish go to a 16 port multiswitch in the attic (no SWM yet). From there, four lines go to the multiswitch in the home theater which feeds 6 receivers, four lines go to the multiswitch in the master BR which feeds 3 receivers, and the remainder go around the house to other rooms. I am getting an HR34 installed next week and obviously move to SWM. So, I want to confirm what I need for the HR20s to work. I believe I will need a 16 port switch in the attic again and an 8 port in the home theater. The four existing lines to the MBR can feed the 3 HR20s in there without a switch with SWM. So for each HR20, what will I need to add and is there a difference between what the -100 and -700 needs? Should I switch to DECA or stick with hardwire ethernet (been working fine - slight delay when starting or doing trick play on shows recorded on other units - does that exist with DECA as well)? I think that answers what I need for now. I'm sure I will think of more as I continue to plan the upgrade. Thanks!