Greg, I have a non-air integrated computer (Suunto Vyper) and I`m seriously considering switching to an air-integrated version (Vytec or Cobra). Why? It`s easier to look at one gauge than two. The air-integrated versions also let you know your minimum time, either bottom time or air time. I`m leaning towards the Vytec with the tank pressure transmitter because I like the wrist mount (fewer hoses to mess with). I`d recommend you get a computer that you can download the data to a PC, it is a great way to keep track of your dives and see how close you come to any limits, along with air consumption.