Primary - Oceanic Versa Pro (wrist mount)
Love it! Big numbers. Liberal algoritm, but can set custom alerts to make it conservative (also use the computer between my ears - never got into the yellow in 25 dives in 5.5 days on the Palau Agressor). I wear it on the inside of my wrist, so I can see it while holding the camera. Between dives, I strap it to my BC inflator hose, so even if I have a "senior moment" the computer goes down with me. I use the download software to keep an electronic log - SW is not great, but its OK. Bought it at
www.leisurepro.com for $279.95.
Backup - Genesis React (console mount)
Was my first computer. OK for air, has Nitrox support (but no bar graph for O2). Computer module was $194.95 at leisurepro.