Hi!
I've used a series of Uwatec computers. First, I had an Aladin Air (gas integrated console) which was sturdy and above all, easy to read (big , clear display). Now, I'm diving several new test devices that'll hit the market soon.
For photography I'd recommend a wrist model. It's easy to handle and you don't have to grab for the hose to have a reading (although I did about 100 photo dives with this setting).
The radio transmission of gas integrated devices is pretty stable. It had it's weak points in the beginning (years ago, most computers, no matter which brand, failed under some circumstances, wrecks, lots of metal e.g.) but current devices have dramatically improved. A friend of mine still uses his manual pressure gauge as a backup but it's stowed away in a pocket of his BC so there's nothing dangling around.
The Aladin Air X Nitrox and the Aladin Air O2 are the two current Uwatec models, that feature hoseless gas integration. There'll be another one coming soon.
All Uwatec models have a large, easy to read display. The batteries aren't user changeable (one of the main points of criticism) but therefore the devices can't flood and are calibrated and serviced when you send them in for a battery change (a battery lasts at least 5 years with average use). The battery level may be displayed and you'll still be able to do a weeks diving at "0%" capacity.
The new Smart series: currently one non-gas integrated wrist model (Smart PRO) and a gas integrated console (Smart COM) offer a user configurable level of conservatism. You may select one of 5 levels to prevent the building of microbubbles. This leads to some more intermediate (non-mandatory) level stops for additional safety.
You may configure the device and transfer data via IrDA. Software for PC, Windows CE based PDAs and Palm OS is available, MAC and Linux wil be supported soon.
Helge ;-)=)