Consoles were one of the industry's worst ideas ever, in my opinion. I want to be able to see depth and deco information frequently and easily, w/o having to bring up a console. There's no good low drag way to rig a console with a DIR or semi/quasi-DIR gear configuation. I also see a LOT of divers (including some very experienced ones) using consoles that are hanging loose and sometimes dragging on the reef.
I wear two computers on left wrist, a DiveRite Duo and Nitex. The guts of these two computers (algorithm and implementation) seem identical. The bigger Duo is much easier to read (and the battery can be changed by the user). The wristwatch-sized Nitex functions is a back-up and works as a watch and alarm clock between dives, but it has to go back to DiveRite for new battery. Air hose gauge (only) is clipped to d-ring on waist, left side (but sometimes moved to left chest d-ring if I need to watch air level more closely. Compass (and sometimes slate) are worn on right wrist.
I agree with UWPhotoNewbie about the advantages of simple hosed air gauges, but please be careful using the Uwatech smart computers! With the so-called smart "bubble" feature disengaged, they work ok, like a (very expensive) Nitrox Pro. If the so-called "smart bubbles" feature is turned on, however, It's possible for the computer to display its "advice" to do a 1-3 minute non-mandatory stop at 3 m at any time during the dive.
Since that advisory mention displaces the No-decompression stop minute display, once it appears you will have no idea how minutes you have left before going into "real" deco and incurring a mandatory decompression obligation. Not nice, and not very smart.
If it weren't for Scubapro's advertising clout, I suspect that these would have been outed in the diving trade press and put out of production years ago. If anyone wants or needs more information (and documentation) about this problem with the Uwatec "smart" computers, email me.
Frogfish