Dan, The ADA products I saw were the aqua soil, power sand, and some ferts behind the counter, and a few other items. No intakes, or CO2 diffusors.
They could have had more, but I was in a rush to get back to the van with my wife, and cranky 2 year old.
livebearer: If you have time, you may also want to check out some of the places on 22. I think they would be closer to how you coming in (route 80) and to where you are going.