That was great advise. Thanks to everyone!
Here is more info about my tank and goals:
dimensions 32" high x 18" wide x 48" long
I would like to keep soft corals, invertibrates, and someday a seahorse
my chiller is inline and will not be under the tank - Noted on the separate controller for the heater. I will definitely add that to my order.
The LFS guy assures me that the T5 units will be adequate. He also reminded me that I asked to keep my tank entirely enclosed as I have 7 cats. If the T5's are no good, is there another option besides metal halides?
Thanks for the overwhelming advise r.e. the skimmer. LFS guy said the 125 was the only one that would fit in my cabinet. I agreed to consider a skimmer that sits outside the cabinet, and he suggested a 6500S from Marine Technical Concepts.
I really want the TBS live rock so I am still going to add my rock in 2 parts. I have heard great things about the life on the rocks, and I like the idea that it is not scavenged from a reef.
The live sand I have on order is not really from an aquarium or holding tank. It comes in bags and has bacteria in it. Any thoughts on that?
Noted on the test kit info. I have made the appropriate changes to my order. Thanks!
Also, I have the water purifier and am busy "making" water. Sorry that I forgot to mention it.
Thanks again for all of the advise!!!