| A lot of the choices depend on what your budget will be but for a basic gas switching computer the suunto Vytec DS is a good start if you only need 1 or 2 deco gasses plus your back gas.
If you think you may go down the trimix route at a later date then the VR3 offers 10 gas mixes including trimix and rebreather use if you purchase the correct pin numbers...
Im sure others can offer other makes and models but these are the two I use with my rebreather as backups etc |